is it against TOS to reupload scores?

there's a user by the name of ruzgartunatun that's just blatantly stealing scores from other users without crediting it. in fact, there's one case where he's claiming to have worked on a score for "over a month" despite it being an ACTUAL CARBON COPY of one of MY highest rated score. i'm just checking to see if it's against the rules to do this, since theres WAY more straight copies of existing scores that I don't have the effort to screenshot rn