At least part of the Mozilla antagonism on HN comes from highly motivated culture war participants. The Brendan Eich situation was a seminal event, but the underlying reasons for it are why the grudge endures.
Also, the reason HN has so many people ready to gripe about Firefox is because HN still has a large number of people using Firefox. I never complain about technical or policy decisions from Chrome or Safari because I don't use those browsers! The only reason I have complaints about Mozilla is because I actually use Firefox.
At least when Rider asked me about it, I say "no" once and that's the end of it.Cool, no hard feelings. You're $15 a month is earned.
Mozilla has had 13 years to do that post Eich and they just don't. Every step forward has an asterisk to it if you dig a little.