Just some minor points
I have been lurking here, but have not been able to read everything. just some points:
1. Pilot playing pilot at home: It was said on various web sites posting information on the pilot that he was involved in simulator training with his company. It would therefore make sense to have such equipment at home. This does not have to have a sinister background.
2. As to the WHY: If this was a suicide by a crew member, it would be most logical to hide the flight trail and divert the plane to the South corridor. Previous suicides were concluded as such because the plane was found. Ditching it where the ocean is very deep and hiding its trail would therefore be a very logical, rational thing to do. Plus, waiting for it to fall out of the sky would ensure that nothing unusual is recorded should the black boxes ever be found and readable.
3. IF it was not a "simple" suicide mission, it would have to be a very organized hijacking. The last terror attack by Uyghurs was a very messy knife attack. Nothing like MH370, which to me looks very cold and methodical. Even al Qaida is currently focusing on more simple, bloody attacks. To me, this looks more like special ops. It would appear to me there are not many countries with reason (still unknown to me) and capability and even fewer freelancers. But then, I am only a scientist trained to be very rational and logical.
I also have some points that I find confusing.
Were the reports that there was radio contact with MH370 by another airliner not disputed later? It seems this is now taken as a given.
Why is the WH involved in press conferences? I missed the initial reports on that. I cannot remember they got into the game during the Air France incident. By contrast, China is comparably quiet given that most passengers are theirs.
Would voluntary decompression of the plane generate a noise that could be heard by witnesses on the ground?
If the plane indeed changed flight levels dramatically in the beginning of th editor, would RR not have gotten the data? It seems they did get routine reports by the plane on the way up. Should a rapid climb up not generate a report?
Sorry, if what I raised is trivial. I have no flight experience other than as an occasional passenger.