There appears to be something wrong with the log {in, out} functionality on lesswrong.org and lesswrong.net, though the exact misbehaviour is browser-dependent.
With Firefox 3.0.6 I can’t log in on those URLs. Using Konqueror 3.5.9 I can log in there, but not out—except by manually deleting the relevant cookies.
I don’t have any problems logging in or out on lesswrong.com with either browser.
The design of this site is rendered fairly poorly in browsers that are configured to enforce a minimum font-size above a certain bound. Specifically:
green circles aren’t scaled to fit the digits shown on top of them
the Karma Score value is overlaid on the text “Karma Score”
part of the text box for entering comments is pushed under the right sidebar
the untoggled states of the Vote {Up, Down} indicators aren’t displayed quite correctly
Steps to reproduce with Firefox 3.0.6 (I haven’t tested other versions, but this is likely to also work with 2.x and other 3.x):
visit about:config
set font.minimum-size.x-western to 24
open LessWrong
I also have a few feature requests:
comment previews
an option for comment entry text boxes with more vertical space
an option for using more horizontal space for displaying articles, comments and comment entry text boxes, when available—the OB design makes much better use of horizontal resolution than the current LW one.