For tag shelves (that will be randomly displayed on the homepage) we want to limit the add-ons shown to ones that meet certain thresholds.

Sorting by users sounds good, but we should also set some minimum thresholds. I think something like 500 users or more, and 3.5-star rating or more.

Implementation details are if this is hardcoded just for tag shelves, or available for other shelf endpoints too, or added as an API feature (e.g. something like a param of ?threshold=rating>3.5)