Yea, you are right they are using 1 deposit address. From how long this giveaways running? If it is launch today then maybe nobody fall into this trap yet since the transaction made two days ago.
But domain registration showing it was registered 2 months ago. If this giveaway running from then, maybe the fund is cames from victims. But not sure.
I don't know exactly for how long it has been running but my guess is this scam has started recently (1-2 days). At least, fake review and comments dated 19 of May.
It means still they haven’t got enough fools on their trap. Bad news for scammers and specially for them who want to be a millionaire just in 24 hours.
I hope you're right. However, telegram channel, in which I found the link to this bitcoin doubler (it was pinned in there), had many members, which means potential investors/victims.
I fucked up a bit and lost the link, so if anyone find it, please post somewhere in this topic.