I'm having a little bit of a technical issue (thanks for the heads-up, Beatrix) - the comments are currently not showing on the blog.
I have no clue why this happened, and I'm looking into it. The quick-fix attempts have not worked, unfortunately. (These were, just in case you're interested: Checking if the cache plugin is to blame, checking if there is a wordpress plugin that prevents the comments from showing by disabling them all, checking if it's due to the theme by changing to another one.)
This means there might be some deeper issue... which I'll go and hunt for. Unfortunately If you have been or are commenting (and thank you if you did, it's always great to get feedback): I still get what you are writing, both in the back-end of the site, and as an email, so it's not lost. It is just not showing up currently.
The really weird thing about this is that I can't remember changing or updating anything in the last few days, or in between the comments still showing and them disappearing quietly (and I don't know when, exactly, they did this). So there I will have go, delving deeper into the innards of my site. Wish me luck!