well its not tagged as adult content, so that cant be it. Also there seems to be no way for an author to check who he blocked and when... another thing I found is that I did block one certain user on 1 of my sites and later found him back at another site of mine, also he uploaded pictures and send PM, while quite sure I blocked him for all... after that I didn't bother anymore with this feature. Sigurd, on bottom site you can find a contact option... perhaps it can be solved from there. You can refer to here if you for some reason appear to be blocked, and hopefully that's enough to unlock. I have honestly no idea whats going on, youre quite a regular and I see no reason to block you.