No one uses Yelp. Wait times are far from mutually exclusive with high demand.

99% of unhappy customers do not complain, they just don't return. Dutch Bros also doesn't belong to the generation of people that make public complaints on things like Yelp, Google Maps, etc.

Younger adults are far less likely than older adults to actually complain about a visit to a QSR. The price point and availability of competitors isn't worth the time it takes to complain. Especially when you're referring to something like a coffee shop where there is 1,000,000 others that you can visit.