I have been away for a while. Apparently, in my absence, lurking has been abolished. I’ve been reading without posting for 2 hours. Why is it that I have to log back in every time I move to a new page? This is getting really irritating. In fact, this is more irritating than the stupid ads I’m logging in to avoid.
I’ve noticed clicking on the “Remember me when I log in” box seems to solve the problem, as it was happening to me too.
K, I did that. I can understand wanting to be remembered the next time I come to the site. But, being remembered from one page to the next kinda seems like a given to me.
Of course, after I posted the OP, I continued to surf for about half an hour and didn’t get logged out once. 
Don’t you just hate technological gremlins? They love to try and make a liar of you. 