I do WANT more credits. I just want to make them playing the game. If Frontier simply added credits to my account, I don't get the satisfaction of earning it. It's just what I said; earning money is how I have fun, not by having it magically added to my account.
Another part of that is money gives you the freedom to do what you want. When Frontier add other content I enjoy, I'll use those "useless" credits to buy stuff that will inevitably cost more than it needs to, or for the rebuy of my larger ships if/when I manage to wreck them.
But by your own words you already have more credits than you need.....
And you can make plenty of money playing the game. I'm not saying that missions for example couldn't do with more work on the risk/reward front. Some of those are pretty out of whack. But money is easy to make these days. So, not sure what your issue is here anyway.
When Frontier add other content I enjoy
What content do you enjoy now? I mean, for the enjoyment of doing it, rather than the credits?