I think we should be able to rename the planets and stars that we first discover. All the features that would make this work are in the game already.
Nope. Frontier would have to employ a large number of staff doing nothing but checking the names for obscenities. Would you be prepared to pay a subscription for that?
Well, isn't it the same with the naming of ships?
No because a single commander can only own a max of, what is it 30 ships? And how many new ships a week would you be buying once you hit that max, almost zero. But a single commander can discover thousands of new planets a week and put in thousands of new names, then multiply that by the number of commanders out exploring, it's in a different league altogether.
If the volume of re-names became a problem then you could restrict it to something like:
Once you hit Elite in Exploration you get to name one system for which you have first discovery tagged on all bodies in that system. For every 250 Million* in discovery data after this, you get to name another system.
*This amount might not be 250 million, it depends on how much FDev want to rate-limit the rename process.