Hand inspected 30 items[^sample] and found 10 real ice cream shops, 9 "exists but closed at least a year ago", and 6 "couldn't even find a vague match". (Also

Hand inspected 30 items[^sample] and found 10 real ice cream shops, 9 "exists but closed at least a year ago", and 6 "couldn't even find a vague match". (Also 2 real frozen custard shops, which for my purposes don't count but if you're judging generic "retail business data quality" they're probably legit.) Over the "Ice Cream Parlor" data subset, only 171 records even have a date_closed (a little over 10%); of the 9 I identified as closed, only 1 had a date_closed field, which roughly checks out. [^sample]: US, MA, has "Dining and Drinking > Dessert Shop > Ice Cream Parlor" as a label, which is about 1300 items; sorted by name and picked the first 30 - not a random sample.