HN has a lot of smart people. People don't like being fact checked, especially when they believe they discovered something significant until experts show it was a basic misunderstanding.
This is the cannonical example of why HN gets it wrong. You really are not an expert in 99.99% of the topics on HN, so having this kind of holier than thou attitude is just really obnoxious.
And this is the canonical example of why Twitter gets it wrong :)
I'm not talking about myself. Never even remotely implied it.
HN is filled with the 0.1% that truly are experts on individual topics. You'll find people that wrote papers on quantum mechanics chiming in on QM discussions, people with decades of RF HW experience correcting those 5Ghz conspiracies, start-up founders jumping in on discussions, and (in this case) people that can read spec sheets and understand how systems like these are built and programmed.
No one's an expert on much, but plenty are experts on something. Twitter's often too shallow to even entertain the possibility of being wrong.