I agree fish, most here are top notch and all sick with the same chainsaw disease that we share. Don't let a few bad apples that took advantage of a few scare anyone away. Do some homework on the person you're buying from. Did they join yesterday to sell a saw? Are they always arguing about something silly that they know nothing about? Are they on pretty much daily or every other day? Have they had transactions with other members that were good or bad?
That and someone who is honest and fair will give you a phone number to contact them about any issues. It's not always true, but more often than not, if a seller wont give you a name or number they don't want you to know who they are. Tha'ts usually a bad thing.