Besides this thread we had a bunch of "We discovered that adblockers clean up and speed up browsing experience by x%. Now why is that?" threads in the last month posted here. There's a reason for that.

As for reliability... I don't have complaints, honestly. Maybe I spend less time here than you.

My only gripe with HN is the search stuff they use (Algolia). It's almost unusable on my mobile, broken in Opera Mini, and just crappy on my desktop browser.