I see now that the software I use to prevent spammers might have been a little too aggressive in preventing users from commenting on this site. If you’ve had trouble commenting on this site in the past, I’m very sorry. I ask that you please try again, as I’ve tried to adjust the software. If you still have problems, please send me a note either by using the Contact form, or by e-mailing me at firstname.lastname@example.org. Hopefully this will not be a problem in the future.