As a reader of the Google Webmaster Groups nothing annoys me more than people who write posts saying “I’ve done nothing against the Google Guidelines and yet my amazing site has been banned. Why could this have happened?”
Most of the time within 10 minutes somebody has spotted hidden links to porn sites or a nasty redirect.
You can forgive these people to some extent but what you can’t forgive is when these people get a full article on TechCrunch stating that they have been banned for selling links. In this case it took 14 comments before Adrian spotted the site displaying a “hidden div with a load of links to a site selling viagra type crap”.
In comment 24 the site owner admitted “we’ve been hacked”.
The lesson to be learned here is if you want to use a site as an example please take the 10 minutes to check it out first otherwise it just makes you look stupid.