It's clear he supports the TSA to "stop planes from getting blown up." Since the majority of HN doesn't agree with that sentiment (at least that's how he paints it), he's sort of being a baby about it and quitting because he can't handle disagreement. He masks this fact very thinly in a what is definitely a stereotypical flameout post.
Communities disagree, and they're not all perfect. Nothing new there. If there was no disagreement on HN, it'd be boring.
Guardians are also inclined to respect authority, which may also be part of his aversion to anti-TSA stories.
This is an absolutely ridiculous, trollish statement. It bears no obvious relationship to the blog post linked. Do you actually believe this? If so, why?
The TSA articles are annoying noise that undermine HN. Unless it's discussing the technology of the devices or heuristics of algorithms used to analyze it, it's pop political garbage that belongs on Reddit.
Though I'll disagree with him on one thing: HN should be more elitist, not less. HN's distinction was once that it really was where the smart technology people were. Of course once it gets that rep the hanger ons follow, and soon they're the ones stamping their feet and yapping about the TSA or even North and South Korea -- those are nice, calming, accessible topics, and it's how every community driven site, without oversight, eventually drifts to the mean.
At the moment, nine people have voted up a comment on Matt's story that asserts that Matt's real issue is that he supports the TSA. I think that supports his point somewhat.
Tools like Myers-Briggs are great for looking at yourself, understanding your strengths and weaknesses and learning to be a better person. However, when you start using them as weapons, the focus becomes other people's problems. I guess the benefit is you don't have to worry about self-improvement anymore when a personality typing system makes it so convenient to place the blame somewhere else.
I'm sure that if you try hard enough, you can read hidden, shameful motives into everything people write, but it's damn rude to use that as an excuse for ignoring what they actually wrote.
I must admit that I do judge people harshly for several Guardian characteristics, but I realize that those characteristics are also (in many cases) strengths.