It's not just hypocrisy. Many of the HNers railing against this are actually responsible, even if just indirectly, for it. Take Chrome (including Chromium) use, for example. Chrome has never been that much better (e.g. 2-3x) than FF. Maybe at its best, when it first debuted and V8 wowed everyone, it was 20-30% better--not enough to justify the investment a poweruser (who heavily customizes their browser) would have to make to jump ship, and not enough for anyone concerned about the open web. Yet I would guess most people here jumped ship at some point (probably when it was new and shinny and Google still paid lip service to "don't be evil"), and they've never looked back, despite FF having caught up and remaining competitive.
Asking people to not use Chrome isn't asking much, and yet people here can't even manage that.
Asking people to not use Chrome isn't asking much, and yet people here can't even manage that.