I don't want to mine a broken coin either but the reasons you have given for stopping mining are instamining and technical issues (moneysupply and checkpoints).

A relaunch won't fix the instamining problem if you do an airdrop to the original miners because the instaminers get coins too.

Whatever issues there were with moneysupply and checkpoints seem minor, and I see no reason to think they couldn't be fixed in a future update.

It feels like you are making up really lame excuses because you were planning on instamining more coins but other miners got to it quicker than you had hoped.