HN does not invalidate your views, it presents you with the views of a certain group of (mostly U.S. based) people.

You can observe strong tendencies in viewpoints for both web/startup/tech related things as well as political issues, and especially for the latter you won't find the full "political spectrum" covered around here (not confining its meaning to notions like left/right wing here).

That's why you should use several different sources/media.