Once in a while I type something longer than few sentences into either a post or a PM. And a certain percentage of those times, when I hit send, instead of getting my post/PM on its way, I get the dreaded "You are not logged into Flyertalk" and a login screen. All the info I just spent 40 minutes typing up has vanished, becoming nothing more than scattered electrons on the info superhighway.
Why does this happen? Sometimes I can work on a post off and on for a while, no problem, and then post it without need to login again. Other times, after a much shorter time interval, BOOM! - post gone.
VERY frustrating.