Cory Klippsten, a prominent Bitcoin maximalist and chief executive officer of Bitcoin educational platform Swancom has launched a verbal assault against Ripple and its executive chairman, Chris Larsen.

Klippsten slammed the blockchain payments company as a scam while describing its executive chairman as “anti-human.” The Swan.com CEO also links the tweet to an earlier video where he claims that XRP is an unregistered security and a pump-and-dump scheme.