Most of the users have telegram here and they ask to trade there? Is this ok? Or it's more likely to get scammed when using outsource of the forum to trade?
The problem is the trust, who will send the coins first? or let me change the question, who will run with the coins first?
The only possible way to trade on a platform like telegram would be with a man in the middle, and that doesn't warrant that man will not run with both users coins. So the risk of doing that is enormous, just a terrible idea.