Ahhh...Free Republic.
Everyone takes a side based on their personal biases, then argues the points to death.
Are they European or African swallows?
Not quite everyone (it was me provided a link to a video of the man who created the rule explaining in some detail how it came to be) but I get your point.
Especially if it's aviation related. Sometimes I think it takes becoming a pilot to begin understanding how little you really know about flying. The vast majority of Freeper's aviation "experts" have never had their shirttail flown from a windsock and so have no idea the depth of their ignorance (but that minor detail doesn't diminish the fervency of their argument in the least).