Maybe those "unique" users had to drag a few of their socks out of a drawer to make up for the real people who left or are restricted now.
What a odd choice of words, "unique", you do know that if something is unique it means it's set apart from the others, or there's not that many around, maybe that was the goal all along, forcing the "unique" posters and the "unique" voters to unite while pushing the ordinary out.
If that's the goal, though, it makes for a very small audience for that content.