The problem you have is that every persons post is objective only from their particular viewpoint.
I've been flying for 29 years now and I've managed to bumble through my career mainly enjoying what I've done. There have been some ups and downs along the way but my personality is such that I make the best out of a bad situation when possible.
I have come across many, many characters who will bemoan, fight and argue every change, rule and SOP going just to make a point. That's what floats their boat.
On a public, open forum that requires no validation you will always get bluffers, liars, walter mitty characters etc. The moderators do their best to weed out the utter rubbish whilst trying to leave the majority be it right or wrong, in the thread.
There are also some companies working behind the scenes I would assume trying to use libel and slander legislation to have personal posts removed as they might affect their business.
I can see it being a very fine line to tread.
Can't get overly fussed about it myself.