While pprune is a wonderful site, I have unfortunately witnessed rather a lot of professional preciousness and a fairly condescending approach to non-pilot contributors, even those who are quite measured in their comments.
One of the conundrums of PPRuNe is this - people who don't fly commercial jets for a living post questions here in the hope of getting a response from somebody who does do so. When a response is eventually offered, those who asked it simply refuse to accept the answer. This process is somewhat demoralizing for those who have taken the trouble to answer. PPRuNe is choc-full of experts on flying who have never flown an aircraft: There are experts on Cabin Crew who have never done the job and others that are experts in safety procedures and systems that have never been trained. You can visit the Airlines, Airports & Routes forum to read advice on how to run an airline from people who etc. etc.
I'm not suggesting that debate is in any way a bad thing, or that scepticism is unhealthy: However, as in the previous Ryanair landing thread, when professionals offer an opinion, or explain a procedure, surely the wise course would be to treat them with some weight?
BTW rmac - please don't consider this as some sort of personal attack, as that is not the intent: It is however, intended as a general observation.