I was in a discussion on the post election political situation in Sweden right now and from nowhere my five year old account got flagged as "suspicious" and locked until verified. For whatever reason it refused to hit me with CAPTCHA and the likes. I had no email registered previously and could not verify. I tried a couple of temp email but got no verification sent there. So I registered a throw away at a legitimate email provider and changed it there. Nothing there either.
But I also have mods and at least one admin that doesn't like me from long ago because I make fun of Nazis. So maybe I am "suspicious".