I think the past users stats are seriously skewed. Firstly the forum was merged with at least one other. Secondly on the issue of the most on at one time, my guess has always been that was a surge when this forum was announced over at UbuntuForum, which is a very large forum indeed - there may have been an initial surge of people sign up who never became regulars.

Seriously though, the level of participation here is quite abysmal lately - but on the other hand the Backyard at UbuntuForum has picked up again (after becoming very slow when this forum began). Funny that.