Earlier quoted context omitted.
Everything you wrote is bang on - please, please, PLEASE: Leave no trace. Haul out your garbage. Don't shoot, shit, or camp within 100 yards of streams, creeks, or rivers. Don't make fire rings where they already exist. Abide by fire restrictions that might vary by county. Stay on existing, marked hiking and motor vehicle trails. As a resident of the West (which has huge swaths of "public" land) I am so tired of folk…
Also, you leave out (which the comment you mentioned does) - please respect local rules. For instance, in Death Valley, you can free camp most anywhere (refer to NPS guidelines) two miles off of a designated roadway.
A local area has gone to great lengths to put up signage stating that unlicensed off-highway vehicles are NOT ALLOWED to travel the main stretch of USFS fire road. So what are people doing? Screaming up and down that very road on unlicensed off-highway vehicles at 2/3x the posted speed limit. Shooting is supposed to be confined to specific areas with backstops - instead you've got dingbats firing off hundreds of rounds into valleys with NO BACKSTOP and they aren't even cleaning up their brass.
It's a goddamn shit show.