Several people have told me about problems they've been having leaving comments. Apparently sometimes people will log in, but when they hit "submit" to leave a comment they'll be told that they aren't logged in. I'm working with TypeKey to resolve the matter. For the time being, reloading the page generally fixes the issue and allows you to log in properly and leave a comment. Sorry for the inconvenience!
If you try this and it works (or doesn't) please let me know.
