Sort:  

These are almost always scams, if one calculates mining profits under the most optimal circumstances or trading under the most realistic circumstances.

If you want to risk on ponzi-like schemes, you must always get in in the beginning. However you'll be participating in a fraud and in the financial ruins of others. So...

I have a better one Bitminer -- Real fun and Free

Coin Marketplace

STEEM 0.04
TRX 0.32
JST 0.098
BTC 64180.37
ETH 1908.22
USDT 1.00
SBD 0.38