Ah, that's interesting to hear. I hope this'll end well.
(will edit as situation progresses, all edits r in spoilers!) user CanIHaveIt also known as ilostmypage and iamdisgusting and Yohioloid-Producer, kyuketsukineko has blocked me for the sole reason of: i asked for compensation for some characters of mine. a while back they made a (now deleted) thread offering art in exchange for characters. i gave them the characters and they said they would provide the art. 8 months later, no art. attached are the transfer logs for the three characters.
(vvv continuation of above to include character name)
as well as our pm logs.
After this last message, they proceeded to block me, only unblocking me to send this message:
i have also contacted them on SCRATCH of all places, with no response. 
I'm extremely upset about this as i have sentimental attachment to all of my ocs, even the ones i trade away. im upset that i didn't get my compensation, and when asked was mocked, and that even though this user had stolen/scammed my characters they never gave me my end of the deal, so users beware or you'll lose your characters too. i hate making threads like these because my anxiety usually goes through the roof but i genuinely care about all of my characters and i don't want anyone else to feel like i currently do.
(EDIT: LINKS TO MY STOLEN CHARACTERS
https://toyhou.se/1514241.vern
https://toyhou.se/1514209.trixie (huge shoutout to Gundham-Tanaka for returning one of my babs!! they're the sweetest and didnt even accept compensation aaa!!)
https://toyhou.se/1445513.pending )
(EDIT: ART REMINDER 
)
(EDIT!! IMPORTANT INFO BY Owlstickers !!!
"Thank you for making this thread. I know you said you get anxiety through the roof about making PSAs or the like, but this is genuinely helpful because you were absolutely, 100% scammed. This user has no sense of accountability, remorse, regret, or a shred of empathy for you. They mocked you, refused to compromise, and ultimately I hope they get IP banned for this behavior.
Just in case they try to change their username again, here's a link that'll show any of their new usernames.
https://toyhou.se/~tickets/create/user/223491 (It's the report feature, but it has their unique user ID that is impossible to change)
Their new account is also MelancholicDespair as stated by one of their bulletins.
In case they change their username on there as well:
https://toyhou.se/~tickets/create/user/236659
This user ALSO was called out for retrading freebies in the past. Their "apology" bulletin here, which was basically just blaming it on being a child:
https://toyhou.se/~bulletins/166245.apology-
Screencaps: https://imgur.com/a/LdEkn48
General PSA thread post: https://toyhou.se/~forums/5867.service-reviews/13734.general-thread-for-psas?page=139
The General thread posts also assumes that all the "friends" linked in the comments are actually just their alt accounts since they have the same exact art style and naming theme for each account. Each account is also now closed, which leads me to believe the assumption was correct. Their alts were:
Mono = MonoDabMaster
Piko/Inky = PikoTheDistortionist
Kokichi = Kokichi__Oma
Hopefully this helped!"
tysm Owlstickers!!)
(EDIT: latest pm 
)
(EDIT: more dms 
)
(EDIT
)
(EDIT: they're already ip blocked but using a vpn 
)
(EDIT FROM WindWaken
"This user seems to have a long history of issues. (not sure if all of these were linked already + some of their messages in the links are gone now but)
1
2
3
4 (they went by crispykinnie/crispycakechild last fall, I recognize the art style)
I've also had issues with them failing to complete an art trade and keeping my half still uploaded. When I asked them to remove it I got the excuse that they were grounded and couldn't. The piece did get removed because it looks like the whole character was deleted but yeah.
I honestly think we just need a mega thread/mega bulletin (?) for them at this point because they cause so many problems and switch usernames a lot to continue scamming.
Very sorry they got you too :C
I don't think you mentioned it but reporting them may help? If the admin sees the ticket they could probably help you with this. But that's a big if." )
(EDIT ft. help from Vaughn !!
"Sorry if this has already been pointed out, but I didn't see it mentioned. The user who owns the third character, the one who brushed you off in the comments when you told them it was stolen and still has it up for offers (https://toyhou.se/1445513.uftof/comments), I'm pretty sure they're also CrispyCakeChild/CanIHaveIt.
If you check the username logs on the "CanIHaveIt" account, you'll see that "CreepypastaSatoru" was a past username: https://i.snipboard.io/8LO2P6.jpg.
There's a bulletin on the "CallMeObsequious" profile, that talks about them wanting to get away from their past as "ArcSanity/CreepypastaSatoru". In the comments, they tell someone to search up their apparent past usernames for more information: https://i.snipboard.io/fslhUF.jpg.
The "CallMeObsequious" profile also asks to be called "Cakey".
In short, if they are all indeed the same person, CanIHaveIt is deliberately keeping the final character from you."
tysm Vaughn!!)
(EDIT: ANON
They just posted this lengthy rant onto their Tumblr blog today:
There's also this post, which is a statement other folks are pointing to but I haven't seen the actual image for yet:
This is a side-account I made to comment here because I didn't feel comfortable commenting on my main account,
before I begin I must say that CanIHaveIt is no way in the right, they stole characters and acted like a ass. But the response you have given is akin to harassment. I will be referring to CanIHaveIt as CIHI for the rest of this post as it is going to be long.
CIHI seems like a greatly troubled teen, from the scams to their twitter page. They don't seem to be okay, I understand getting characters scammed is upsetting, but I feel like there could've been alternative actions to their stealing. An example would be just downloading the images, uploading new characters and making a bulletin explaining the situation and warning others to avoid interacting or at the very least avoid doing business CIHI. Your original response was fine, a long post with plenty of proof and asking for advice. But the reactions and your continuing responses are just weird.
You went from talking about how you were scammed to airing out this teenager's dirt laundry. You brought up a vent from their tumblr account, unrelated and completely unprofessional. You supported the action of stalking their twitter account and talking about their disturbing behaviors, you continued to rummage through their personal life with no regard of what's on-topic. The only reason I could think of is talking about their DID, and if it is; you shouldn't be be allowed to be online. It is extremely weird and uncomfortable to speculate about people's mental health, no less a child. You also implied that they're lying about their own mental health which is out of range and also intrusive.
I have seen this happen many time where people use other's mental health to their advantage in drama, it makes me uncomfortable to be honest about my own mental health. At this point the thread should be locked, you got your characters back and CIHI closed their accounts. You're making them seem more dangerous than they actually are, they are the run-of-the-mill frustrated teen. You've got them in a corner and act like you have a g*n pointed to your head, it's just hard to see people taking advantage of situations where someone is doing something wrong and then it's free game to act discriminatory and harass them.
I can only hope that you learn to let go, back-talking and stalking doesn't really make your image look better.
I_eat_hipsters hey, I appreciate the concern! All of the add-ons were not me and are tagged accordingly as whoever sent them to me! And I myself have never said that they might not have did, all I personally said was that mental illness is not an excuse to lie. (Could you show me how to lock a thread? I don't actually know how!)