I can see where the OP is coming from. I used a different skimmer mission system when my former player group was wanting to tool up with a wing of untraceable frigates to allow us to stomp all over some BGS in a completely plausibly deniable manner. NB: I have since left that group. However back then, I took a new account from starter sidey to combat fit conda with 6x rebuys in the bank in a couple of weeks, that skimmer mission system was not as lucrative as the colony the OP references, I reckon a few days there would have had that much money made for a new commander starting today.
Why do people care so much what ships other people have? Isn't this game supposed to be a sandbox? Get on with your own game and let others get on with theirs