So you can revise a prediction, but Steve Keen can't? You're the one who always digs up that one article where he is quoted as saying housing will fall 40% in a few years, when many other times he has specified and been quoted as saying 40% over 10-15 years.
Anyone can revise a prediction. Yes, all Steve Keen's predictions from 2008 were wrong, and after they didn't eventuate, he revised them. However, Steve is a public figure. I'm just an anonymous guy who posts on a few internet forums. Funny thing is, the majority of my predictions have been right. I don't think Steve has got any right yet.
As for digging up that old Keen article from 2008, I think I've only done that once or twice on Somersoft. Stating that I 'always' dig it up would suggest you've seen me bring it up regularly on APF, a forum that you claim not to visit, but that I expect you probably read intently.