This has also been a problem in paxful recently. If you're trading with low trust profiles then never do deals with them from a distance. In person deals for small ammounts can be beneficial for both and also earn them a good amount of trust too before going in distance trades.
I did not find that any people loose their money like in localbitcoins, it might be issue in the paxful but lbc users always go with the high trusted member or they use to trade with the repeatative member with whom they traded already. In localbitcoins we can easily from the traders information and feedback and number of trust they have. If the person does not have 100 percent trust. We should not go to trade with them. People like this newbie sometime scammers attacking to them.