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?
Any kinds of trades can be done possibly at any platforms.
What you must have is, be attentive and cautious at all time. Used your common sense to analyzed things and don't be easily fooled with such words.
To sort your concern, do you already have some list of examples of groups where trades are done?