How come, every now and then, when there's a big thread slating some rubbishy band like Kaiser Chiefs or something, their official messageboard goes haywire.

It happens pretty often. Someone will say, 'How crap are Hard Fi' and their fanclub goes crazy and has a big thrombo on their site. Do they have people watching DiS constantly? Its funny when someone joins up to say, "You're all cunts and James Blunt is the best."

Moreover, was it actually Tom Smith?

(I hope so.)