It's weird to see two threads on the same topic. To be honest, I think the only solution to partially please both sides would be the idea of making it region-based rather than system based, and those regions obviously should be named as informative as possible rather than just named after the systems. Like, if we'd roll with "Liberty", that contains, orienting on the NavMap, already ten systems, without Puerto Rico and Cassini and all that. I mean, bad example, as Liberty's action is basically the area between Rochester, Fart Bush and Westpoint, however, if you'd try to find people that are in Ontario, Alberta or Virginia, you'd never find them. Maybe differ between smaller in-house-regions like "Western Liberty", "Northern Liberty" and "Eastern Liberty" and so on. 2-3 systems per sub-region. Same for all other houses and the Edge Worlds.
However, is that worth bothering? I'd say yes. People with the intention of "shadowlogging" - sadly that term is still used - will have a 100%/200% harder time finding their favourite and already ooRP pre-destinated targets while the other party has a bit more time to counter-act on that.
The problem itself is however less with the player list rather with the people using it to hunt down others, as they actively use it to harm others. Let's be real about it: That's the worst thing, just as trying to explain/justify that kind of metagaming also inRP.