Well, I talked to a few d phil students about this thread, and every single one of them thought that if someone doing a d.phil wanted to use you tube videos as sources, that was his affair, and it was up to him to argue about their validity, origin and bias, and so on, and that the value of the d.phil couldn't be judged until it was finished.
I also since I was last here talked to someone who lived in new york for a while, who doesn't have any firm view of the matter.
He says that he talked to a few people who were eyewitnesses, - not many though, and that none of them saw a plane hit a tower, and that they thought it was possible that there weren't any planes.
There's other films on youtube showing people saying they didn't see any planes hit the towers..
I imagine there must be some that aren't official news, featuring people who say they saw planes, though, - Maybe someone could find one, I haven't managed to find any yet.
I also found a clip from someone called jim fetzer, who seems to think the no-plane theory is credible, and it was interesting to note in the clip's blurb, that according to these clip makers, they agree with editor that loads of so-called 911 truth sites are a load of shit.
"In spite of the cowardly censorship and banning at the pretend "truth" sites 911 blogger, nineeleven.co.uk, and Loose Change, the overwhelming evidence of TV Fakery is winning new converts every single day. Ian Neal, DZ, and Dylan Avery cannot supress the truth about TV Fakery no matter how hard they try.
But myself, I'm not sure that people failing to see planes is knockdown evidence against planes. I'm quite inclined to the point of view that if just a few people say perceived something, and there's no obvious reason to think that they're lying, then that counts in favour of that something to a much greater extent than the failure of a bunch of other people to notice.
And it does sound as if there's evidence that some people say they saw planes. The problem is that people didn 't see planes hit the towers.