ah so i in fact wasn't the only one who had that problem! i also was "not an active user" for 2 weeks, until they finally unlocked my account again! write dcdeb about it, she helped me by contacting them, and 3 days later i could log on again.
do you really think it's because of the pix you upload? then why the heck don't they tell us and ask us about it? i uploaded lots of pix too, but they're all my own, and what does "similar pix" mean after all? if i upload 20 pix on which mika is wearing a white-with-gold-shirt, they're not similar to me, because he looks different on each pic - but maybe they see that in a different way? and if they say ppl do that to collect points, then what about the person who has over 100,000 meanwhile, and it's getting a lot more each day?! i figured it was a technical mistake that my account was closed, and they also didn't write anything to me like they wrote to giulietta - i'd be really angry and disappointed if i found out that they blocked my account, only because i uploaded my own mika photos!