Anyone claiming to be satoshi then he doesn't need to publish "I am Satoshi Nakamoto" but prove he has knowledge like satoshi and can do something about satoshi addresses to prove it, maybe even more than 100 people claiming to be fake satoshi don't have anything to do with with satoshi and just bullshit claims, I support your statement above that anyone claiming to be satoshi has to prove 24 hours on this forum and if he can't prove then he has to claim himself that he's out of the trash.
The real Satoshi would not claim to be a satoshi if he returned to the forum. I don't think satoshi would mess up this forum just to let the community know he is satoshi. It's easy for him to prove himself, I guess, but of course he won't waste time on anyone who doesn't believe.
I've heard the name satoshi has been banned on this forum, but I can't remember where I read it. This is one of the good stipulations to not let random users use the satoshi name when registering and make a mess.