I think Richard's feedback shows that nearly 100% of the people that have bought or sold to him are satisfied with their dealings. I once used a mechanic that I trusted. He did good work and I was happy with him. One day I found out he was screwing me and I've never been back. Lots of other people still use him and are happy. I think this will be the case with Richard. If you want to deal with him knowing what you do, then nobody is going to say that you shouldn't. Personally, I'll pass.