If you ever see art re-posted without permission on any website or by another tumblr user, and you recognise the artist, please tell them! You won’t bother them, and please don’t have the mindset that “many people have probably already told them” bc if everyone thinks like that nobody will help the artist
It’s called the pedestrian thought where you don’t do a thing because you think someoen else will do the thing but everyone just assumes someoen else will do the thing and then nobody will do the thing.