Steam Workshop Paid Modding - My favorite mod

12/5 best mod
-me

7.8/10 too much nothing
-IGN

I want to create a mod, sell it for the maximum price allowed, and make sure that all it does is delete your save files if it's loaded and display a derisive message at the main menu.

I would, of course, make it abundantly clear that's all it does so that if you're stupid enough to spend the money on it and ignore the warnings, you've only yourself to blame.