Gammas almost by definition aren't going to be counter-signaling anything.

He did not say it was said by gammas. He said that it resembles something said by gammas (but was said by other people). These other people could countersignal.

You seem to be making the mistake under discussion by conflating being superior to someone with "hating" him.

No, I'm not. I didn't say that feeling superior is hate; I said that feeling superior affects how one expresses hate. Someone who feels superior might express hate using nice words, if his status is such that it is clear that he is not using the nice words to actually be nice.