#P2P Look, look what happened to this user from India.
In the market, if you are in seller mode, make sure that your money has actually entered your bank account, only then release the coins.
If you are in buyer mode, choose offers from verified users, who have no less than 99% approval, who have a good number of effective transactions, who are online, and if with all that, you still don't trust, umm, breathe and look for another one that feels more reliable to you.
Lastly, NOT ALWAYS THE MOST TEMPTING OFFER IS THE BEST.