Really back this time
I’ve found and fixed the problem on the site which was being bogged down by the Akismet plugin. I’m still getting heaps of spam in the moderation queue, so I’ll be looking for suggestions to fix this, along with other improvements to the site. But posting should be back to normal from now on, and commenting should be reasonably easy.
UpdateOf course, the moment I post this, the site bogged down again, but it seems to have been just a glitch.