Please show us a solid proof that you got scammed on localbitcoins. If you cannot provide any, I would assume that this post is just a bad attempt to advertise vertex. That is probably not the type of marketing that will help you gain users here. Try to play fair and just focus on the advantages you have over your competitors.
Okay so first, I am not trying to promote any company, I found the above linked post because I searched for bitcoin talk about mining in china and noticed the post by Vertex. We sell on localbitcoins and every so often, we have someone reverse PayPal funds and we have to deal with the backlash.
I suggested Vertex because it was the post I was on and it seems legit, I registered, tried it and as I said, I made a few trades that went well, but I am the type of guy that doesn't sleep because he has a couple hundred "What If's".
I am open to any suggestions, realistically we just want to be able to trade with PayPal and not risk loosing every few trades if you don't conduct a fair amount of KYC.