Therefore you might as well not roleplay, otherwise it would only be roleplaying for ones own amusement.
And if that's the case, damn you need to get out more.
I do play the game for my own entertainment. Indeed, I'm not sure who in their right mind would do otherwise, without some other form of compensation. I follow the rules and don't go out of my way to alienate other players, but I'm not going to go out of my way to entertain them at my expense either. My character is my character and if you can extract some entertainment value from him, great. If not, whatever.
Again, this does not enrich the galaxy. It makes you look like a murder hobo ganker griefer.
Encounters with plausible
characters, rather than solely overt
caricatures, most certainly enrich the game for me.
We all have our own opinions about what makes for the most entertaining experience.
It's bizarrely ironic that in your apparent quest to enrich the galaxy for the rest of us, you dismiss views not in accordance with what you personally desire.
My point is that communication between players would help to make the galaxy a more interesting place.
I communicate with other players all the time. My CMDR also frequently communicates with other CMDRs.
However, the time for communication is over the moment someone makes a hostile move or has been selected as a target for violence. From that moment, the fight is on, and words, unless they are meant to rile or distract, become a liability.
If you don't roleplay at all, they whine that there's no context to your attack and that there should have been a roleplay reason for doing.
However, if you do roleplay a bit over voice or written comms, they whine that it's only an excuse to gank.
The solution to this sort of behavior is to ignore the whining and let them keep their unfounded presumptions.
The worst thing that can happen is that they don't stick around to dismiss everyone who takes a shot at them as a murder hobo/ganker/griefer. Nothing is lost. Trying to explain something someone doesn't want to hear is an exercise in futility.
Even when someone might be receptive to the idea that you had a reason, explaining it on the spot is often impractical. They can ask in a more appropriate venue, or in a situation where hostility isn't possible.