Admittedly I was in a foul mood last night. (my "comeback" hit a slump the last couple days). I'm hardly alone in this issue, and have seen other threads about it.
To be honest, I've gotten used to not having to reboot, clear cache, etc.. It seems from various experiments done so far - it's an issue of extended time so to speak. I'm not really familiar with HTTP servers, but do have some experience in networking. My guess is that there is a data file on their servers which monitors the users logged in and such. I haven't logged out since I joined in early February, and don't think I've rebooted in several weeks.
Oh well - so much for the joys of being spoiled I guess. I suppose I can log out and back in once a month or so .... not really THAT much of a problem ... LOL.