I will add that I try to use freecampsites.net and campendium. I'm starting to lean more toward the sites where you have to pay at least something to stay. That's one of the first steps in weeding out riff raff and then as mentioned above try to stay away from towns.
I often try to make contact with others park around me in these places just to feel out the situation. There are some of the nicest people in the world who just have a difficult situation and there are also people who should be institutionalized. My prediction for these free places is that they will become worse and worse.
The boondocking spot east of Cottonwood is a good example. I've been there 3 years in a row and stay in the same spot and spend hours picking up trash and raking up glass. If you go in to the far end of the site in looks like an actual dump. There were van seats, interior panels, plastic parts, mattresses, cupboards and all sorts of garbage. This year I noticed that the BLM? had dumped a pile of large boulders back there. It wouldn't surprise me that they aren't for blocking off access to part of the site. No entity has the resources to haul off tons of trash over and over. These places will be shut down and then people will scream about the BLM or the "Man". idiots just shaft themselves.
On the other hand and not making excuses for anyone you do have to consider the overall situation in the country. It will get worse.