Restaurant wants to make Yelp unreliable

Botto Bistro in Richmond, California is unconcerned about its Yelp rating. In an effort to undermine the reliability of its Yelp page, Botto Bistro is working to be the worst-rated restaurant in the Bay Area and is encouraging its customers to leave one-star Yelp reviews and offering deals for anyone who writes a bad review: 25% off any pizza and a chance to win a cooking class.
Chefs and co-owners Davide Cerretini and Michele Massimo sayt their food is excellent and they run a busy restaurant. According to Cerretini, they're tired of the constant advertising inquiries from Yelp, and their “blackmailing” and review manipulation.