More than 70,000 Twitter users are blocking major brands on Twitter

"More than 71,000 Twitter users have started blocking hundreds of major brands, including Nike, Pepsi, Uber and McDonald's, in a boycott aimed at putting pressure on the social platform to permanently ban Alex Jones, the far-right conspiracy theorist and InfoWars host, according to a report in Adweek.
Blocking brands could limit the reach of their promoted tweets and other ads from showing up on users' timelines. Other brands being blocked include Red Bull, Starbucks, IBM, Cisco, Microsoft, Wells Fargo, Visa and Capital One."

Source:  Marketing Dive, 17th August 2018

Note - If you block someone on Twitter you won't see their tweets, even their paid/promoted tweets.