I mean my friend called Bo a dreamie and despite the fact I'm ~never gonna give him up, never gonna let him down, never gonna ruuuunnn around and, desert him-~ it lowkey felt kinda good, cause like, hey that's so cool they like my character that I pour my love and soul into, that's so epic.
If someone called Juniper a dreamie however I'd be less happy because uhm- No. Not a chance.
Edit: in classic dumbass fashion I forgot to add my secondary little bit - that is to say my opinion on people putting OTHER people's characters in dreamie folders - I say it's fine as long as the person explicitly states it's okay, but if they say it's not or don't say anything, don't be a dick and say that it's a dreamie regardless.