Been following this 'kerfuffle' from afar, something said 'don't , whatever you do, get involved' and anyway I missed the original posts so wouldn't have known what I was talking about. Best shut up yeah?
One thing has occurred to me though (partly addressed in Jenss post). I comment regularly on a national newspaper (Guardian) and there MODERATION is taken very seriously and on a 24/7 basis. I'm a night owl and I've seen posts deleted at 2 am. Persistent offenders are first given Pre Moderation - that is, their posts have to go through the mods first before being allowed on site. This pre mod can last weeks or months (I was premodded for 4 months! Football...). Then the commenter is allowed back to direct posting. Further crimes result in one's account being cancelled.
For me BLF simply don't take their moderation seriously enough. No moderation at weekends? You're having a laugh! Pay someone, get more staff! This is an important site and deserves more attention and funding than BLF is currently giving it.