Sorry, you were saying?
Apologies to those communicative souls that placed comments on the site up until today (apart from that weirdo forum that kept spamming the site. Yes, you). It seems you can't make an omelette without breaking any eggs and all of those wonderful posts have been consigned to cyber-history.
The culprit is progress. Blogger doesn't yet have 'Trackback' as a function, but it is possible to enable this functionality through Haloscan. Unfortunately, when you enable their handy auto-installer, it deletes all of the previous Blogger-powered comments.
Hopefully, the change will be worthwhile as, true to the blogging principle that 'no blog should be an island', Trackback is a great way of viewing debates in the blogosphere.