I agree there should be a minimum post requirement (and I am a new guy) or require a paid membership to bypass the minimum posts. But, I have seen sleepers in other forums cultivate a relationship for over a year, commenting on posts, getting to 200 plus comments before posting fraudulent items. When confronted, he claimed to be a military vet with combat medals and can't believe he was being treated in such a manner. In the end, he was proven to have ripped photos from past online auctions, manipulating the images in an attempt to trick a google image search. These days you really have to be careful, trust no one, verify everything.