This is just a heads up for anyone who might develop a WordPress theme – lets say that you have an excellent new WordPress theme and every one loves it and the client is happy and everything is fantastic, however the comments are not working.
You make sure that the installation of WP is not the trouble, you try the theme on a different domain, get the default copy of comments.php, a version of index.php that works, and nothing is fixing the problem.
The problem is that when someone tries to submit a comment they get a 404 page and the url is a big long string of variables, paths, etc.
Well, if you ever experience this problem, you probably have a form above the comments form that is not closed.
If you have this problem and find this blog post then you will probably solve your problem an hour faster then I solved mine. Lessoned learned? When something is not working, validate….

I just made my first theme and everything is working, except comments. keep getting “comments are closed” option. Can you help me out?
August 3rd, 2008 at 9:30 am