Only been a "Jeeper" for a month & 2 days now, but I'm a waver
I've also been a Harley guy for a while, so the wave is nothing new. From my observation, most who don't return the wave, regardless of what generation their jeep is, all have one thing in common - they're all on their damn phones! I'd say it's almost 80% - 90% of non-wavers have know idea I'm passing them because their yapping way. I mean come-on, I'm door-less in a complete downpour and initiating a wave, just a simple finger flex would be nice.