Is there somewhere I can read where PG officially says that? Because the last account I had got marked dead and I don't think I did anything other than post a n

Is there somewhere I can read where PG officially says that? Because the last account I had got marked dead and I don't think I did anything other than post a non-popular opinion. That comment got something like negative 18. A day or 2 later, [dead]. Maybe it was just a coincidence since, after all, there are plenty of dead-accounts that when I look through their activity-history nothing jumps out at me as a punishable HN-offense.