That’s not really fair on Discord. The article mentions they received an injunction to remove the content so they were forced to do this. Anybody in the same jurisdiction would have to do the same:

“Discord responds to and complies with all legal and valid Digital Millennium Copyright Act requests. In this instance, there was also a court ordered injunction for the takedown of these materials, and we took action in a manner consistent with the court order,” reads part of a statement from Discord director of product communications Kellyn Slone to The Verge.