Surely we need to understand why some people prefer PvE (SOLO) if we're basing suggested new mechanics in that direction?
1) Don't trust other CMDRs in OPEN?
2) Prefer the "easier" experience against just the game/NPCs.
3) Want the "easier" experience against just the game due to results.
(...)
None of the above. And this is your problem here that you don't even get close to comprehend the reasons wy people play in Solo. More so, the very first sentence of your post suggests you actually see people playing in Solo as somehow impaired, as if they were some poor souls which need to be converted to a correct and enlightened path of the Open. That having multiplayer experience, good or bad, is the bee's knees. It's not. There are thousands of multiplayer games out there, there have been for years, there's nothing new here.
Well, it's not at all like this. Many players simply are not interested in multiplayer aspect of the game that much or at all. Many people do not want to be a part of any power play (not as in the game feature), squabbles over some virtual turf. Many people do have a life outside of Elite and are entirely happy to start the game for a couple of hours, chill and then go back to their everyday life. Some of them will be happy to meet the same other people on the other side of the screen, some will be happy to have some interaction with other players, but what people who play in Solo or Private Groups have in common is that they simply want a place to relax, not a place to wage wars over and also not a place where they are being pestered by people they would never be interested in interacting with in the first place.
Personally, I don't really see what is there for me to "trust" other players with. Virtual credits? How much you need? If I have that much, you can have it, but it's just some 1s and 0s. I gave away around 30mil yesterday and don't feel in any way impoverished because of that. Virtual ship to shoot at? If I could, I'd happily have all of mine flying around as targets for people to shoot at and destroy for as long as I don't have to be participate in this, because, quite frankly, I have other things to do. If I want to spend time with other players, I will spend time with other players. But for most of the time I don't really care about what other players are doing in the game. Whatever makes you happy, really.
In the last three months I have never encountered a single player in Open (and I don't care), the only times when I see other people is when I want to see them and arrange to meet them in game. And when I do that, it's not to take over any of the bits of the galaxy, because I don't thing waging virtual wars is worth my time. I bought the game to fly a virtual ship in a virtual galaxy and have some fun, not to undermine something as superficial as someone's need to feel important in a computer game. Granted, I seldom venture into Open, there is nothing I would be interested in in that mode. I'm simply not overly interested in what people do in Open and I'm not fussed about the way they decided to entertain themselves.
Easier experience? In what way? Unless I decide to specifically go to the areas which tend to attract players, I'm likely to meet one player per few thousand or more NPC ships. And even if they attack me and blow up my ship, the only way it differs from being blown up by an NPC is that a player may choose to pester me with their presence and demand my attention. Why would I give my attention and time to a person I absolutely don't care about in the first place, whom I never met and am never going to meet IRL?
What sort of easier experience against the game? You gain some virtual credits, fly some virtual ship in a virtual galaxy and at the end of the day you switch it off and carry on with your life. It's not some sort of a rat race, it's not something that is going to make or destroy your life. There's no reason to give it more importance in your life than it actually has.