Of course people speculate - ESPECIALLY here on FR.
It is certainly not crazy to ask questions and to seek answers, clarifications, and to think about possibilities of what occurred - ESPECIALLY SINCE WE ARE AT WAR! This means that there is an enemy (or enemies) who want to kill people - especially people allied with the USA. If we doubt this we are crazy.
There is perfect justification, IMHO, for questioning the information being given out (especially since there have been several different types of planes named as being involved in the crash - from the "official sources" and since the age of the pilot has been given differently several times and the fact of a copilot has been mentioned and then discounted and then mentioned again, etc, etc, etc.)
Finally, in a war, we know that not all information given out is the truth. I accept that and don't argue with anyone who might want to deny OBL's gang and those allied with him a propaganda push with this event - if there should be more to it than just a damaged plane being out of control and hitting a skyscraper.
So, I really don't argue with that "strategy".
It's just that it is an old habit to want to get to the truth - for many here at Free Republic - and we, as a nation, have had many experiences time and time again when the truth - and justice - were officially obstructed - and that was definitely during a time when there was no excuse for such "coverups". So, again, searching for truth and facts is NOT - to me - anything other than normal behavior.