I know that a lot of in Telegram are scammers and I want to know how to fight against them.
Community, any thoughts?
Google is your friend and this community on bitcoin forum also. If you want to join a project on telegram make your own research in the internet look at the devs website if they don't have a website it is not a good sign.
For example if you got a message that you won a lot of ...coins click on the link follow.. take care it could be a scam everything that sounds to good to be true is mostly a scam. Don't give your private Key to anybody!
Agree 100% Never ever give the private key. Also be leary of anything that asks you to donatate ETH or BTC to participate in any type of airdrop or to join an ICO.