I think we need a new rule in Scam Accusations: NO TELEGRAM BULLSHIT. If someone scammed you on telegram complain to telegram. It's a waste of time trying to decipher who made up what and there is zero chance to verify shit.
I think there's little to no chance that you'll convince people to stop using Telegram. I must admit I find it convenient, quick, and effective to communicate with users I meet here, especially if they're new and have PM restrictions. Without getting into the whole "end to end" encryption debate, or their willingness to allow scammers to abuse their platform, I just think it's a tool. A useful one that needs skill and understanding to use correctly.
However, I have never, and never will complete a transaction solely on Telegram. When I was offering escrow services, all official addresses I provided were posted here, on the forum, either in public or through PM, and always included a signed message. If all of us bitcointalk.org members would insist on transacting this way and this way only, the Telegram scams would be a thing of the past. There would be no way for an impostor to fool anyone.
Insist on a signed message,
posted here on the forum!