Attitudes towards GW can be a lot more adversial then simply buy or not buy. For example, I might openly advocate against ever buying a codex and will point people towards alternative sources of rules.

So when people are displeased with something GW does, these sort of 'annoucement posts' are just a little bit more than just voting with your wallet. You are basically negatively advertising and encouraging people to not buy anymore GW products. I mean, in this thread alone, it seems that GW has lost two customers.