Hello... great work!!
after using the site for about 2 days, I decided to pay for the service to get rid of the ads. which leads me to report a bug  request.
bug:  after logging in and selecting 'Always stay logged in', when i come back later i still see ads and have to log in again.
Thank you! That's strange. the script check the premium status every time when page refresh.
I think you maybe haven't refreshed the page.
Or server maybe haven't received the payment from net, Bitcoin need several second to broadcast to net, and another seconds from BlockChain to notify us.