It's not the fact of the pushback that it is important, but how it is expressed. One of the great HN advantages is community's focus on substantive comments and a strong dislike of any personal attacks.
HN: "php sucks because of those technical reasons". Reddit: "php sucks, period, and you are a moron".
HN: "php sucks because of those technical reasons". Reddit: "php sucks, period, and you are a moron".