MyPayingCryptoAds (MPCA) is not legit, if you think this website is going to last forever you'r wrong, its not sustainable.
But if you think is going to last for 6 or 7 more months, then go ahead and invest in it, if it doesn't crashes in this period your gonna make a good profit. =)
If you want to know more, here's the link: http://cur.lv/154bgz (Skip the Ad)