The comp.compression newsgroup regularly sees posts from folks with incredible compression claims. This one, started by Itai Bar-Haim, is remarkable not so much for its claims, but rather for the incredible length of the thread it spawned. All Atai said was that mathematical combinations have nothing to do with compression. So there.

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=39512e5b%40news.bezeqint.net