I believe it's been a nightmare for many google researchers when they stumble on Experts-exchange.com, a paysite forums for technical Q&A. Thanks to this article, which instructs in genenral: to remove "experts-exchange.com" from the cookies list (Mozilla-Tools-Options-Privacy) and add the same site as exception in BLOCK mode, we now can view the ANSWERS for free!
They who once manipulated the google system to trick users into their site with keywords to their questions, now face a tougher challenge than a "-" sign keyword on their domain name or the possibility of google blocking them.