Yes, if you give people an open protocol they are going to use it to create coupons they can sell in exchange for real money and then not honour the coupon, its a tale as old as time.

If you're dumb enough to buy a shitcoin just because it's built on bitcoin tech, then you didn't understand bitcoin and for that you pay the price, if you do understand it, there won't be a market for shitcoins on bitcoin and those ideas will remain in an ecosystem that requires constant inflation to thrive, places like the shitcoin market itself