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?
It doesn't matter what platform you do do your trades on it only matters who you do it with.Can you tell us more about the kind of trades you want to get involved in?
Were you contacted by individuals asking for contributions/investments with promises of high rewards on telegram? In that case it is not safe to get involved with such individuals.
Make sure the person you want to trade with has an account here and not just claiming to have an account. Tell him to PM you with the telegram ID where the trade will be done. That way you gave written proof in case something goes wrong, he will be tagged/banned.
Always keep logs of your conversations especially relating to addresses.
Keep away from self-moderated threads UNLESS the owner is trusted and has a higher rank. Remember in self-moderated threads the creator can easily delete the posts he/she doesn't like.
Use an escrow if there is a lot of money involved, check the marketplace and services section for escrows. If the person you are dealing with doesn't want to use an escrow it is not a good sign.
Always make sure to check the reputation of the user and if he has been involved with or accused of scamming in the past.