[Semiapies]

Sometimes a response is not worth writing.

If people make reasonable (and even to your knowledge correct) arguments for X, then someone replies to say nothing more than "X is wrong/bad/inefficient" with no counter-argument or evidence, why answer that? If someone makes a bigoted remark (anti-gay, anti-American, whatever), why answer that? If someone's trying to drag a discussion off-topic, why answer that?

The answer is "I don't have to write an answer." You have a channel for expressing a reaction, and just as it's unnecessary to write "That's so right!" replies instead of up-voting, it's unnecessary to give gratuitous replies instead of down-voting.