I've finally given up on the idea of making my blog a "social" site, and have turned off comments. The amount of spam I was getting on every article was absolutely ridiculous and took about 2 hours to clean up every time I got round to doing it.
I've now cleaned up all the spam (apologies if I removed any legitimate comments that anyone actually cared about). From now on will be turning off comments for every blog post and article (not many, given that I rarely update my blog these days).
Anyone who really want to get in touch with me can track me down via @townxelliot on Twitter.