It would seem that the revenue-optimizing ML has learned that the median user could really go for Chinese take-out right about now (for all values of now), no matter what sort of food they started out looking for, so it's always going to show up.

I know median and mediocrity already share a common root, but I wish there were a clever portmanteau describing ML-optimizing for the median user leading to a mediocre experience. "Medianocre" just sounds like an eggcorn, so I presume 99% of readers would take it as a mistake instead of a neologism.