[shittyanalogy]

This doesn't solve any trust problems, there is still no guarantee that the ratings can't be covertly skewed. I don't need even more things messing with my text app and don't want anyone parsing my texts looking for restaurant names. My friends opinions of restaurants are not generally useful. I can't see if they have happy hour, wifi, or take credit cards with just 5 stars. Many restaurants have the same name. Restaurants are location dependent.

Ironically this would be most useful if it clicking on the rating took you to the yelp page so you could see the details, photos, menu, read reviews, and confirm that it is the actual restaurant you're talking about.