Hey I'm lending to bitconnect too, it returns an average of 1% a day so basically you get your initial investment back in around 100 days, you can't keep reinvesting your interest, the minimum investment is $100 so you'd have to wait till you have that much made from interest payments first then you can lend it out and so on.
I find it great so far I'm still skeptical but I'm taking my interest payments out until I have recieved what I put in, then ill start to reinvest that way I've nothing to loose if it does disappear.
I invested $1600 about 3 weeks ago and so far I've nearly $500 back from interest payment.
If interested id be delighted if you used my referal, https://bitconnect.co/?ref=Alexrickard

But a little tip create 2 accounts, and link the second to the first, you will need 2 email address for this but this way you'll recieve the referal commission in your first account 😉, again id be delighted if you used my referal for the first account. You'll still get the 7% but you'll help out a fellow steemian and I would get the next referal of 3.5%