> I'd really like it if more artists left some form of ID on the bottom.

Well, obviously the artists themselves do not like to do that.

> Uh-huh.

It is easy. I know of several webrings and uploaders that are reserved for Futaba Channel artists and their specific websites.

> I think 2chan has gone past normally useful anonymity and into "nobody can know my shameful internet hobby".

Well, that's always been part of the whole concept. It's not like anybody has ever denied that.