I see so many services offering to double, triple and multiple in all possible amounts the coins you put to them. ~snip~
You're a full member and you still don't know about this? "Give me all of your btc and i'll double it for you", Do you think there is a kind person like that?
If he can double or triple other money, why he not double his own money? The answer is he can't double money. This is bullshit services.
I right now doubled my bitcoin worth, I bought when it was around the 480 dollar and I now doubled it, its just that you need patience to gain money so doubling bitcoins be done but you just need to be patient.
Your money doubled by naturally, lol