The position occupied by Yelp only generates opportunities to scam. There's no natural surplus-generating business there. Few entrepreneurs would choose to comp

The position occupied by Yelp only generates opportunities to scam. There's no natural surplus-generating business there. Few entrepreneurs would choose to compete for that, when they're just starting out. Maybe some would be forced into it after too many pivots, but Yelp is probably clever enough to stay ahead of them.