I have noticed that I have had to log on about the last five or ten times I came to this site. I know that in the past, if you had not been on for awhile, it would make you log on, but I just wondered if this was a permanent thing?
If you have cookies set to "on" in your browswer and check the "remember me" check box, you should remain logged in until such time as you clear your cookies. Without cookies set, yes you have to log in (that's why I have to log in each time from my iPhone browser.)