These sites will never let you make any profit. If you are a paid member then you'll get your withdrawal requests for one or two times maximum after that you'll be waiting for a lifetime.
It's better not to invest in these sites.
I do not think that even paid - members will get any withdrawal. I read almost whole thread and i have seen only fake confirmations from Brand New bitcointalk users.
My first withdrawal is pending from:
2017-02-14 16:50:38 1288466 -0.00500000 BTC Withdraw Pending Cancel
So it is already required time 30+ days.
I thought about reinvestment, but in such a situation, it is better to forget about this web site.