Only if you're stuck treating people as one homogenous glob. If you let people self-identify by interests (+french food, -foodie, +fine-dining) you can easily

Only if you're stuck treating people as one homogenous glob. If you let people self-identify by interests (+french food, -foodie, +fine-dining) you can easily get actionable recommendations and minimize noise. The trick is that adding specificity exposes how small your user base is. And when you're dealing with an inherently local industry, even a massive user-base can start to look small when it's sliced up geographically and then by interest.