As to your first point. If you had everyone in open there would be even more players in the RES with you. All you have to do is find a different RES, and your efficiency will improve. Fairness is ensured with equal availability to any of the modes, at any time.
Open is just as efficient a mode as solo on the whole. It's the same environment as solo. Exactly the same. What you have to do is decide what you are looking for. Player interaction.... play in open. A quiet place to play.... solo. A little of both.... private group. It's up to you. What do you value more? Efficiency or interaction.
I jump between the modes to find the activities I want at that time. That is how it is all balanced out. Insisting that everyone be made to play to your gamer ethics is just plain wrongheaded.
Yes, I know if I want more efficiency I can go to an empty RES or go into Solo. But I'm saying that I WANT to bounty hunt in RES with other players (i.e. Co-op mode), but that I am unable to because the spawns are so limited. Also, sometimes in a populated RES, there are 0 wanted ships, but like 20+ clean NPCs doing nothing. Convert some of those useless clean NPCs into wanted pirates!