The daily deal website Groupon was the subject of 140 consumer complaints to the Federal Trade Commission (FTC) complaints between July 2011 and May 2012. The documents released to MuckRock include allegations of false advertising, spam emails and unresponsive customer service by the company.

MuckRock user Robert Delaware requested complaints against Yelp to the FTC from the last four years, and got back 700 - that amounts to almost one complaint filed every two days, with most coming from small-scale entrepreneurs who are especially vulnerable to online reviews.