[herdcall]

OK, "Younger and left-leaning outrage tends to dominate on Twitter" ^ "Older and right-leaning outrage tends to dominate on Facebook" => Twitter has "done more good than harm (unlike Facebook)?" That's ageism of first order right there.

[khazhoux]

I think his point was that because "good" is entirely subjective, and since HN aligns with Twitter, HN subjectively will consider Twitter good.