Yelp doesn't seem to have brought a lot of a joy into anyone's life.
Their coverage is not uniform across different countries (Germany is not bad but still occasionally spotty) but it's a great filter of the crap restaurants.
I know Yelp has a shady underbelly, but pretending that it doesn't have anything to offer is just being intellectually dishonest.
Actually, I used to read the Yelp complaints about the ice cream place near me, which had a famously cranky owner. Those often made me laugh; does that count as joy?
Yes, yes it does!