Ask HN: Account has been permanently suspended from Reddit

Just got the dreaded message "Your account has been permanently suspended from Reddit.", with no prior warnings or any idea on why this may have happened. Attempted to search through my history, but nothing stands out, and my 10K+ "karma" on both sides of Reddit participation (submissions and comments) makes me think that I have not really done anything warranting a ban.

Found two older accounts of mine, which I used for some tests on old phones, quite a while ago, and as soon as I logged in I got the same message: "Your account has been permanently suspended from Reddit."

Anyone having experienced this?