May be there's a way theymos could clean all that up
I doubt he'd do that, as its pretty much laborious and there much better things to do such as countering spam which are part of the mods' tasks.
I'm just thinking out loud and wondering if that would be possible. I don't see much problem with doing that, honestly. BTW, I was referring to theymos and not mods. Another highlight of that would be only users with zero posts. It's a kind of revoking their rights to those accounts since it's been long they posted from them. I'm not a tech guy and I don't really know how (or if) that will be possible.