I was thinking it might have been for using ausfish to push a product/brand name (e.g the L word). The moderators may have also deleted posts that contained inappropriate content and banned him. Maybe I'm wrong but thats my guess.
I remember having a pretty pointless argument about this same topic (loomis) about a year ago with a freind of mine. Looking back I really think I should have just accepted his reasons for choosing this brand of rod afterall we are all different people and therefore have different ideas about the tackle we buy (and how we fish for that matter). Each to their own I say.