We can see these kinds of scams are common now. Scammers choose different public forums and target users to the scam. Most of them do not believe this kind of scams, only a few get trapped. We should not believe all these and report them immediately.
I have encountered such scammer before promising to give me 1.5 BTC,as an appreciation for a good task, I laughed over it and moved on, telegram chat is mind your business, failure to do that is getting into scam. Never chat with strangers that start chat you. That's the secret to win them.