I'd just like to chime in that I also had a bad experience with user "Gomerlin" on this site. In my case, it was my mistake in that I somehow forgot to click "Payment Complete" after I had transferred him $2,000AUD. Once I realised (unfortunately it was the next day, I think), I immediately requested him to re-open the purchase, but this was futile as obviously he had the bitcoins returned to him. He kept ignoring me and trying to mislead me in various ways, but I knew that he had received the funds. Anyway, eventually he agreed to "return my money" (this was several days ago), and since then has ignored all my attempts to contact him, including directly via email. I had even attempted to cut a deal with him (via email), to at least send me 1 BTC back, otherwise I would pursue the matter with appropriate authorities. As he still has not replied, I have begun taking action. We will see how this goes.

Note: I also filed a dispute to Localbitcoins, but I don't expect there to be any resolution. It seems Localbitcoins staff are either extremely busy or just hold disputes in contempt because they didn't even think it worthy to respond at all. This was a few days ago already.