This discord lurking guys can be found on telegram as well.
when you register to the advertised websites you will receive a fake 0.2 BTC (can be a less or high), the system will tell you to make a deposit of 0.01 BTC or more to withdraw the giveaway balance.
This is an old scam, but still people get scammed, again and again. That's why newbies should be aware of this kind of scheme.