I haven’t gotten many comments recently, and now I think I see why. When you go to post a comment, you can choose to fill out name, email address, and website. None of that, however, is obligatory. I do not hold comments for moderation unless they contain links (a common aspect of spam) or if Askimet, the spam filter, finds the comment to be spam. If Askimet catches anything, I will try to look it over within 24 hours.
Edit: I now see people can comment. Thanks for the replies!