What I'm finding most frustrating on this site is people abusing the content warnings to put stuff like "DON'T STEAL MY CHARACTERS!!!" (basically exactly what VincentVanGoat said is what I'm talking about). I'm really getting tired of having to click through these content warnings when I just want to look at the character page. Especially since it's such a common occurrence.
I also like Antimoany's idea of the warning symbol. Because at least you can see there is a warning but you don't have to be bombarded by annoying messages that take up the whole screen until you click the button.