I cheat in ksp, for sure. Save scumming, and completing like contacts like you did.
Also, giving myself a ton of money and science to skip the more tedious stuff. In my mind, ksp is all about the satisfaction of completing something new, difficult, or adventurous. After the first few careers of maxing out science legitimately, I no longer get satisfaction from the first dozen or so missions that need to be done to start a new career, so I cheat to skip them.
Tl;dr: if you aren't robbing yourself of satisfaction or a fun rescue mission, who cares if you cheat?
