It seems that the initial post was copied into a thread in Jet Blast by F40. Danny then removed it from that thread because he considered the points that the "email" raised had already been hashed out elsewhere.
That doesn't explain why the thread was closed though, and having read the email contained in "Reasons.." it is worthy of some debate.
Tigs2 has already complained about Flt Lt PPRuNe editing out an inocuous comment in the Al Jazeera thread. I had a feeling that things were going to head this way when Flt Lt PPRuNe first emerged. If you want to start moderating out comments for no other reason than you don't like them, you are going to find people leave in droves, and Mil A/C is hardly alive and kicking these days compared to what it was 2 years ago.