I've never been one to post an ad about people asking too much. However, when I see someone giving false information, then I will go ahead and create a post calling them out on that. For example, a guy has been posting a Fuji S12-S in the Chicago area saying that the bike originally sold for $900 and that is why he is selling it for $250. I couldn't care less that he thinks he could get $250 for it, but I can't stand to see him flat out lie about the original price. I did the same when I saw someone post about adding "top of the line Suntour Spirt" to a bike made in the '80's. I know that most people here would recognize when sellers are full of crap, but I know that in general, people are gullible and he will eventually find someone to rip off.
So far, I have only done this twice, but the $900 bike is back again, so I might be making post #3 tonight.
I know that this may not be the most popular thing to post here, but I feel uncomfortable with the idea of some uneducated person being ripped off. I'll continue to do this.