Ordinary people don't use cron jobs.

I suspect that's because of bad reviews. I give all crons 5 *'s.

This is not made for ordinary people I would say

Ordinary people would absolutely use an app that lives in the menu bar/system tray, has a Safeway login page and a "run on startup" option, and once a day does magic stuff in the background that adds all the available online coupons.

Right but now Safeway will update something that will cause this to break, and now people who use this super handy app will expect the maintainer to update it - even if it was just a one-off project that the original developer had no interest in maintaining.

So now people will complain and your inbox is flooded with "please fix this" because people feel entitled when all you really wanted to do was just try some cool thing.