Well, there are builders and then there are builders, aren't there...

We ain't building rocket ships or stealth bombers.

Some of us aren't, but then again some of us actually are and some of us have been in the business of designing and developing things just like you mentioned for decades, with that said, some of us try to pass on our years of experience only to have some cowboy with just enough knowledge on a subject to be nothing short of dangerous, then enters into a thread with their opening statement of (I AM GOING TO DISAGREE WITH YOU ON SOME POINTS), and begins to spout out with complete rooky nonsense that has absolutely no validity to it whatsoever...

Bob