This entire debate stems from an unfortunate design choice on top of a very rudimentary law system (read consequences for unlawful actions). There is a very simple way out of this and it's been used with success in many on-line games. For ED that would translate in introduction of a multi-verse (or dual-verse if you will) system. Two separate mirrored galaxies, one yin and one yang for a full circle. Yin galaxy used for the solo and private mode and yang for the open mode. Players may chose what version they wanna play in at any-time but their actions would have effect only in the corresponding galaxy for that gaming session. Will rehash for clarity that they should be able to switch at their leisure between modes.
I've been following this thread for some time now and I'm well aware of FDevs stance on the matter but I honestly don't think that there is another way to resolve this so both sides of this debate will be satisfied.
Also it's worth mentioning that the, above mentioned, law system needs a lot of improvement or open mode would become a ghost town.
This comes from a car..(oups sorry mods) avid solo player that have done just a few incursions in open but does realise that you can't play tennis alone at the concrete wall and pretend to be recognized as no. 1 ATP tennis player
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Or you could take inspiration from another game which should not be named here and area separate people with different play-styles but that would mean only one mode and I bet you'll have quite a stormy forum if you go that way.
Or you could just let it be and play it out.
I would agree that the above solution would be preferable to the current status, the downside of it would be that it splits the community further in an already vast universe (and relatively low player counts ~400k or so), therefore I would prefer my "incentive" to join the open world which rewards the additional risk to it.