I'm... not sure about that, first I heard of such a glitch. Maybe browser just had a fit?
And well, hard to put a number on it. Probably too much, part of it is just free time and if something comes up that needs doing, I act on it. And then there's various discussions 'behind the scenes' about new mods, changing this or that, etc. Each mod basically has their own amount of time needed to do their role, varies from section to section, rank to rank. And also fluctuates on top of that, haha.