Mumblefratz is an expert who has done a lot to push economy to the limits, including games on gigantic with maximum habital planets and playing games well beyond they're over just to see how much money can be accumulated/generated.
Actually, I do not play games well beyond when they're over.

I've ended each game that I've played by December of the earliest year I could have possibly ended it. There's not a whole lot of point to dragging the game out beyond this. Some folks think that the secret of getting a high score involves "milking" the game beyond its natural end. I actually take offense at this suggestion because it's in fact not true.
If you're going to make accusations of "milking" you may as well make accusations of outright cheating. I don't particularly appreciate either.
The true secret of getting a high score is not by milking the game long after it's otherwise over but by optimizing the four components of scoring (population, economy, research and military might) throughout the entire game. It's not so much that you have a high income at the very end of the game that's important, it's that you're making 50K early on while others may only be making 25K. A "high scoring" strategy is one that incorporates score maximization as an integral part of the strategy from the very beginning not as an afterthought once the game is otherwise won. Ask any player that has scored above 200K and you'll get the same answer. You might be able to "milk" a 100K game into a 150K game if you're lucky. I can guarantee that no one can "milk" a 100K game into a 300K to 500K game.
Is the 100% bonus from evil a bug, or not?
The 100% bonus is a "bug" in the Mind Control Center that has been known for so long that it's apparently left in place as conscious decision by the developers as something necessary to make Evil a playable option.