[0des]

This scam is rampant in Discord where in many top cryptoasset communities a bot will PM someone about winning a 'contest' or receiving a promotion for one of these scam exchanges, and it follows the same narrative from there of asking for transfer fees to claim "up to 1.2 BTC" etc.

[jobigoud]

That feels very different. In the OP the 'victims' are people trying to steal Bitcoins themselves.