As I said in the Tor.com thread, it really depends. I think I can seperate an artist from his art. And in general, never's an awfully long time to swear not to read someone ever again. Also, some people make mistakes and own up to them.
I suppose it also depends on whether or not I'm already familiar with a writer. Frex: If OSC wrote something people told me was AMAZING, I'd read it. (I know that's a serious *if*.)
I haven't read much by Paul Di Fillipo before, but I wouldn't be opposed to reading more, even if I think some of his recent comments have been...odd.
I'm not familiar with John C. Wright and at this point after reading his rant, I'd prefer to stay that way for a little while.
It's kind of like a store, isn't it? If the owner of a store was some kind of scum, I would have to set that off against how great the store was. It's the same thing with an author/actor/musician.
I don't know if it's the same...I mean, I think Tom Cruise is something of an idiot, but there's a good chance that won't deter me from seeing his movies.