Hopefully this is just a meme because if you actually do this it's more wasteful than just using a disposable bag once and bringing your reusable ones next time.
It's kinda weird around here, because the law doesn't ban paper bags, but all the stores around me stopped carrying them in favor of thicker 'reusable' plastic bags.
At least the 'reusable' plastic bags fold up and fit nice in my purse, so I can actually reuse them, but I'm pretty sure most people treat them as single use plastic.
Provided that you're not throwing the excess out, it's not too bad? They're reusable but they do wear out eventually, and when that happens you can just draw from the backlog.
Alternatively you can always use them for other things - I don't keep 37 of them, but the handful I have I'm always using for stuff which isn't just groceries.