If I remember correctly, it wasn't so much that it logged you
out but that you were linking to the page using its IP address
instead of www.perlmonks.org. Since most of us don't have cookies
set for the IP address, the result was as if you were logged out.
I seem to remember thinking "boy, this is annoying", but then
I just read your page, hit "back" on my browser and continued
on :-)