he steals things people post on forums, takes gifs made by YTMND users and puts it up as his own, puts watermarks on shit that isn't his and if you request shit you made yourself to be taken down he wont (usually) do it.
He even tried to sue Max (creator of ytmnd.com) because some people from his website posted that they would kill eBaum on his forums. (Since they were being serious and he was legitimately worried
) I'm sure he's tried to sue other people for no reason as well.
I mean I'm fine with stealing content, everyone does it, but he takes stuff people worked on forums and ytmnd which was just meant to be seen by users of the forum/ytmnd to promote that website. He's rich as fuck because of it too, almost everything on his website has been stolen.