Earlier quoted context omitted.
It's used by all kinds of groups. Developers, gamers, but also left and right groups, etc. I don't understand what the problem is if someone who supports something I don't like (be it alt-right, liberal, whatever) uses the platform, as long as he doesn't bother me personally :/ (My account was just banned by sctb for this ;P)
American Nazis were using it to organize the Charlottesville demonstration. That's not a form of legal liability nor brand identification you want. https://www.engadget.com/2017/08/26/discord-chats-may-help-c... Also the bad people never stay confined to their private hate club. See the linked article here about "raids" on other channels or literally the entire history of Internet social media.
The only "people" at fault here are journalists, putting Discord in the title of the article. They do it to put pressure on the service providers so they ban those people, but they will just go elsewhere. It's frankly stupid. The only side who's hurt with those articles is Discord, who don't deserve it.