To anyone who has a shred of fear of flying, the game of "screwing with the pilots for laughs" is not fucking funny.
Your fears are your problem and do not constitute an excuse for irrational response.
Twitter comments were not known to anyone on the flight. Those who would have normally followed his comments would be his hax0r buddies who understand context and are familiar with issues.
So he's scaring people and breaking/threatening-to-break his word, and they're being dicks to him. This may not be statutory justice, but it's poetic.
Being a dick to LEA who is threatening you to back off when they are in the wrong... Sorry I don't see the issue.
All they are doing is discouraging research and attention making the industry less safe and more likely to allow Manufacturers and Airlines to make riskier design choices in the absence of pressure to do otherwise.
But if his frustration with Boeing and Airbus is going to drive him to be a fear-mongering troll, then any inconvenience caused him by the FBI seems utterly fair.
The media, politicians and security industrial complex are fear mongering trolls. They routinely and intentionally stoke fear for financial gain and self promotion while being fully aware of their deceptions.
A researcher who honestly believes something to be true is not a troll. You may disagree with his conclusions or characterizations but disagreement alone does not make someone a troll.
The idea that harassment by LEA is somehow deserved even for crazy anti-social fear mongering trolls is disappointing. Freedom cannot exist in the absence of tolerance. Being a professional LEA is fundamentally incompatible with in-kind reaction to someone doing something to get you mad.