My goodness ... do I really need to repeat myself? I don’t give a damn about “experience points!™” (And yet, will miracles never cease ... I do seem to have accumulated quite a few.)
As utterly-boring as it may seem, I actually meant nothing-more and nothing-less than precisely what I said: “sessions do time-out,” here just as with any other web-site on the planet. However, should that happen, the response of this web-site might be unexpected. Instead of requiring you to log-in again, this site will instead go ahead and submit the post ... anonymously. And, in so doing, it will consign the post to be “something that you can no longer edit,” leaving you with absolutely no recourse in the matter. (I don’t know why it does this ... I didn’t write the code. But people who are accustomed to “typical” web-site behaviors might, indeed, be quite surprised by this ... as was, apparently, the O.P. Meanwhile, certain people who knowingly use this “fee-chur” to duck experience-point demerits, merely deserve to be ignored.)
And, beyond that, “so sorry, but I do not own the site.” (I’m not even a god, nor do I care to be.) By describing the present behavior of the site, I am not making any comments regarding it. Here's my opinion, if you absolutely have to know ... This is your boat, after all, not mine. And I am quite “cool with that.” Have a very nice, albeit much less self-important, day. And, meanwhile, let’s just stick to the subject.