A little configuration error on my part resulted in numerous (actually, all) new comments for the last seven weeks being declared as spam and treated accordingly. Anything more than 14 days old is, like Bob Hope, gone forever.
After the problem was brought to my attention I sifted through the 1,884 comments that were pending deletion and discovered numerous legitimate ones which I restored to their dignified, non-spam, status. The remaining 1,855 of them were junk like “Nice site! Viagra” and “Hello there teen sex group melon berry asian hentai ballet hot love vendetta.” They remain in the spam cupboard.
Apologies to anyone whose comment didn’t survive. The configuration has been fixed and comments should appear automatically, unless they’re about replica watches, online pharmacies or having sex with farm animals.