Beware. The promotion's run over to scaming people. There is no guarantee about make double money as instantly in short time. Be smart.
May I could be wrong, but if you still have do as participant for those giveaway, probably you'll get red-trust cause support these project.
Remember if you add your email to their website, you mail data could be sell out in one day. are you'll get many scam / phising mails.
I would be glad if any DT1 members or mods will reply to this because I wanted to try this promotion to be able to tell if this is a scam or not.
Of course, all BTC doublers are a scam but I didn't want to start with scam accusations before I try them first.
I am not afraid of my email because I use a special one for such suspicious promotions.
Never seen a situation like this and never thought that participation in promotions could lead to red trust, as I said it would be great to hear an opinion from members with more experience in such cases.