My blogging software has been behaving strangely, so sometimes comments would not work. I’ve tried changing some things, and I hope it will work better now. You can also try submitting again, sometimes it works on the second try.
Sigh…
I need to move this site to a new host, but I just haven’t found the time yet.

Update: I’ve moved the site to a new host, and I hope it will work better here. Please let me know if you are still getting errors!