With Facebook being a social media platform where people can share their views, creating groups or pages specifically for people with those views, more often than not it tends to be abused, especially by hate groups and terrorists who might use the platform to spread their propaganda.
However according to a report from The Wall Street Journal, Facebook has been attempting to Fight back against such activities with Counter speech, which is basically countering all the hate with messages of positivity (to put it simply). The social network has recently employed various methods to facilitate these counter speeches.
For example last year, Facebook allowed former members of extremists groups create fake accounts so that they could send Positive Messages to members of extremist groups, which they found actually proved to be rather effective at generating longer-lasting conversations. They also encouraged college students to create messages to counter extremism and were given $2,000 budgets and $200 worth of ad credits.