If riding a 'bile is so physically demanding, then why are most 'bilers old and fat?
There are rude dicks on skis, too, but first off, you don't hear them from several miles off, you can easily get away from them, and they have way less of an impact on the environment on average.
Machines shouldn't be allowed anywhere but on roads. I bitch about snowmobiles because they ruin what I go to the mountains for to get. I also bitch about 'biles because of the damage I've seen done from one or two jackasses on them. 24 inch minimum, huh? Tell that to the loses who tore up the Long's Pass trail on Stuart last year. And the assholes who tear up the meadows below the Easton.
Climbers and skiers aren't 'pure', we're less obnoxious, less noticable, and less damaging to the mountains. Your buddy 'hiker' says that you are 'courteous' by passing us slowly and waving while doing so. Well, thanks, that wave will keep me happy while listening to you roar around all day. Thanks for being so courteous.
Snowmobiles give you a workout. That's a treat!