Having personally known someone who has been banned from a certain game for griefing, it does not matter how stupid any of us think a particular behaviour might be. Some will still do it just because they can, at least until they are stopped by account moderation interaction.
The problem is you are assuming that the bases would ONLY be deployed sufficiently far OUTSIDE the bubble(s) which is a pretty naïve assumption to make wrt the kind of behaviours being discussed.
Even if they are ONLY deployed sufficiently far from NPC populated space, there are still potential issues with certain significant locations being "camped" resulting in players being indirectly subjected to griefing by proxy class behaviours.
The above of course is assuming the bases are not limited from spawning in modes/instances which the owning player in question would not normally have access to. Such a restriction in turn may introduce complications for cases where multiple player owned facilities conflict in location (e.g. have partial overlaps).
In short, the kind of issues with persistent cross-instance/cross-mode bases are NOT currently achievable with current gameplay mechanics when you consider the instancing restrictions of Solo and Private Group modes.
Griefing by proxy is RP only, I can go anywhere and do anything I want without being affected by other players. Again, you and the other de railers of this thread who inhibit discussion of actual implementation of these bases, are literally trying to pick the worst example of how they can be implemnted and can't build a solid argument, because your little base can't stop me from doing anything. Period. This is already been proven.
Player ships are already in the SAME location in different instances and yet don't overlap, the SAME can work for bases!
It doesn't even matter if someone can own one spot on the I believe I mentioned atmospheric worlds where bases may have purpose to the content surrounding them because they can only affect their local surrounding which is quite small, when we've used up all the space in the galaxy we'll be long dead by then. These views are myopic and born out of fear and ignorance. "I don't want bases because someone might use it against me, I don't want bases because everything in the galaxy should be mine, I don't want bases because It's not Elite, I don't want bases because players might abuse it. I don't want bases because this is not EVE online"
Whatever man. It's happening ya'll need to get over it. It will happen in the future, I've already posted quotes with significant developer interest in these features. It's all about what these bases are used for, how they function and how player influence extends regarding these features.
I'm sure we never rode in submarines in Elite either, I'm sure we never had first person shooter combat in Elite either. I can't wait till they allow ship boarding and combat, you thought griefing was bad now. LMAO!