With respect to RPs and my own characters I had many more characters like shorticus has than I did edgy-types.

When I was 14 I RP'd in a couple forum RPs as a angry man made of gold who is angry because he is angry and beats up people to become emperor of a galactic empire full of aliens.  Or a alien species that uses giant cannons to go to space or a alien cyborg that is actually a demigod working for a god to cause chaos in this universe because the God in the other universe is jealous of us.  And a space gangster who wanted to go t Neptune for some pizza.  I still don't understand why I was denied at the time given the other characters in the RP, but whatever that's ancient history.  Needless to say the reception of my characters was very mixed.

Edgiest I got was making a alien with exploding sperm that reproduces with stabbing people at some point. Never used it in any RPs though.

And it's hard for me to think negative of any of these ideas given what I dislike.  They all are great concepts that everyone should try at some point.  And I don't see them as any worse than elf #57 and fandom characters.  Those are the worst.  Id still take my giant golden men who wrestle their way to the title of emperor or a robot man that's a missile who has six arms to shoot lasers with over a fucking elf or a fandom OC any day.