At first I wondered what was wrong. I logged in to their Irc channel and someone from the site told me that if there are no downloads during the first 3 days after registration, then the IP is banned. I asked if this is mentioned in the FAQs, the reply was 'No'. I was also told that in future things will get more harsh at private sites.
All I had to tell him was that they seemed to be shutting out genuine users as only a trader (or professional) would have been alert to the situation.
I mean I was in no hurry to download (or share) porn so early after registration.