Say what you want about 'booter' services, but a DDoS of a particular web presence has been a long standing weapon of dissidents/activists who want certain services taken down, even if only briefly. It's the only means of online protest we have, short of simply sending an e-mail to a hosting service asking for certain content to be taken down, or DMCA'ing them.

Edit: The real pros don't use Booter-as-a-Service sites, they infect a bunch of IoT devices using tools they made themselves and hammer a specific IP or range of IPs.