I don't understand why people are getting so upset with this - these kind of practices are well to be expected from malicious entities such as Bitmain. It's just a desperate attempt to make people buy BCC, but the only proper response to this would be for people to not buy anything from them. I understand that they are the largest player in this market, but even they will feel it when their sales are dropping like a rock - entities like these can only be hit in their pocket, in order to make them realize that they have made a big mistake.
It's an interesting conundrum, though, isn't it? Expecting people not to buy Bitmain's hardware may not be realistic. At the moment, buying mining hardware from anyone but Bitmain is basically giving away money to charity. You really expect miners to put ideology before profit?
I would only expect that to happen if the Bitcoin economy drastically transformed such that typical users engaged in mining. Hopefully that's the direction we are heading in, but we are a long way off from there.