I tested it for fun, if you sign up for Ralphs, it sorta works till you hit the 200 coupon limit and then it goes a little wonky. Give it a try and I think you will see the bugs.
Yeah the Kroger companies have a 150 limit. So do some others like Target. Need to add some logic around that. Right now it clips the top 150 based on the default selection which is recommended by the store based on previous purchases.
Need to implement capping at 150 so it doesn't hang the browser and change the ux so you can select categories to clip.