On the other hand, and, I've served in ARES, RACES, and a county EOC group, much of the criticism has been earned, and continues to be. Many who have not served may have had the desire to, but were thwarted by some EC who was threatened by them having more real mojo than him. Many may have been interested, then were exposed to the wackers in a group with their 8 magnetic car signs and ten dollar Wal-Mart flashing lights irritating people. Some may have considered it, then found out their EMA had been harassed by the group or EC for building access, govermnet purchase of radios, and official ID cards, with no real work earning such privilege. Maybe some were interested, then one day in a cafe saw a few guys come in wearing their nuclear green vests adorned with 29 league badges and two HTs each blaring police calls from their belts, and running their mouths at an equally loud volume in search of attention. Who woud want to be associated with that, or have that be the public impression of their hobby?
I'll guess you have had the pleasure of serving in a group that none of the above applies to. If so, excellent! I've seen both the good, legitimate, and the ugly. If you've served in the good I can see you "really getting tired" of the noise. That being said, coming off with "If you've never done it, keep your mouth shut", assumes they never tried. Perhaps they did join then found it disheartening, so offer their opinion and observation. Who are you to tell them to shut up?