Let me start by saying I have no time whatsoever for “conspiracy theories!” 😀

I have been studying the available evidence (including those links supplied by Creaking Door), and my opinions haven’t changed!

My belief is that the aircraft crashed out-of-control after an attempt by the passengers to retake the ‘plane. Whether or not the hijackers crashed it deliberately (when they realised they had little chance against those passengers) is still a matter of conjecture and will continue to be so until the FBI release the CVR recording.
This recording is still that vital, missing piece of evidence. Until that tape is released, unfortunately these wild & wacky theories will continue to circulate.

Don