I usually just adopt b/c i like their designs ;u;!!
I wouldn't do that to someones adopt unless they let me, or unless that adopt is made with the purpose to be drawn with gore (like horror adopts) B/c a lot of ppl don't like gore xD, so i don't want to SPOOK out their creator with disrespect ;u;!! I usually don't draw gore with non-horror adopts anyway :0
For ppl who adopt my character designs, they can do whatever they want xD I'm just selling them the designs, not the backstory and such :0
Aaa that's how I feel I don't mine practicing gore and stuff on OC's I've designed but I am afraid I might weird the original designer out of if they'd find it disrespectful if I started using a character they designed for such purposes
I almost never adopt things but when I do I ONLY adopt them if they become 100% mine. So it doesn't bug me too much. still though I don't think I'd use them because my vent art and other things normally have to click with me. So there for I only use Ocs I made.