I just got a discord dm saying i won a 0.25BTC bounty from mercatox from a bot. I have never heard of this nor have i signed up for anything. It's proof of scam. "Give us money, we'll give you more". Like someone calling me claiming to be my creditor, but asking for my credit info, it's bullshit.
That's clearly a scam, they are everywhere in different platforms, if you are not smart to spot a clear scam, you will surely loss a lot of money in the crypto space.