These pictures correctly show the vast majority of OHV users parked or driving legally on permitted OHV routes, through legal stream crossings. These routes were created in most case by ranchers and miners using horses, wagons, and jeeps -- and still provide valuable recreational access almost a century later... that's what most folks call sustainable resources, and OHV folks even share with mountain-bikers, horsemen, and hikers.
Still, taking time to click and later carefully crop a photo, and one can find rare evidence of off-trail use. There's a few percent that don't know the rules or won't follow them, but instead of working with enforcement to catch them, you propagandize here.
I'm headed to Moab in a few weeks to participate in an OHV gathering that draws folks from across the country -- we'll be driving on the trails and recreating responsibly. Maybe you can snap a picture of that and twist the captions to meet your agenda. You'll have to plug your ears to avoid hearing the pre-run drivers' meeting where we talk about responsible recreation and staying off crypto-soils, the CB chatter that reminds trail users to stay on the trail, and the trash bags that will be stuffed as we clean up Clif bar wrappers, water bottles, and other hiker/biker detritus.