We have a high compression engine, you can "retard" the timing all you want, it doesn't change the compression ratio. There have been lots of threads about running low octane gas in the Crossfire. I've seen the damage that running "cheap" gasoline can do to a piston over time.
I simply stated it would be nice to know the serial # of your car when you turn it back in, in case another forum member may be concerned about you choosing to use cheap gas in your engine.
I don't owe you an apology for simply commenting that "some" people wouldn't want a car that was run on Low octane fuel. I know I wouldn't, and I'm sure I'm not alone.
By the way, I never said you didn't do other required maintenance to your car, I simply related a story of someone I knew who cut corners to save a buck. If that offended you, it must be because I hit a nerve. Remember, you're the one who said you used cheaper gas.