Greetings,
lately I encountered a Cmdr who behaved in a way which most would be probably describe as “griefing” and simply deliberately annoying – this was in Open Mode, where he can do as he pleases, of course. It took some time for me to realize however that he had a dot at the end of his name, so by just reading communications it's probable people wouldn't be blaming Cmdr “XXX.” – with the dot at the end – but “XXX” instead.
I think the game would benefit from restricting names which are intentionally created to cause confusion. I can't image the real Cmdr “XXX” to have an easy life.
Note: The XXXs just act as placeholder, if there's really a Cmdr named “XXX” or “XXX.” out there, this is not(!) about him.