White Supremacists Built a Website to Doxx Interracial Couples

The definition provided at the end is basically correct.

The idea behind Marxism is that we're in an intermediate phase, before moving to Socialism, and then Communism. Guys like Stalin and Mao wanted to push that forward, quickly, and accelerate the transition to some sort of glorious workers paradise.

Accelerationism is a right-wing spin on that, where they decry the modern world as unstable and due to collapse -- hence it's popularity with the militia/prepper types. Just like with Communist Great Leap Forward, the Accelerationism is designed to, you know, accelerate that collapse, the rationale being that the sooner it collapses, the sooner it can be rebuilt. And if there is a rebuilding, it can be rebuilt the way you want it, with an emphasis on authoritarianism, and a lot of implied discrimination, libertarianism, Christian Dominion, etc.

Intellectually it's tied to the "Dark Enlightenment" pablum that's pushed by a handful of Alt-Right types, most notably Peter Thiel, but it's adherents are generally the alt-right 8chan-ner / militia types.

Accelerationism's focus on the collapse of the US Government and breakdown into smaller ethnic and social nations is VERY similar to Dugin's "Foundation of Geopolitics"[1], and it's likely that foreign propaganda has embraced Accelerationism as a way to destabilize the US Government.

[1] https://en.wikipedia.org/wiki/Foundations_of_Geopolitics

All three top-level comments here are attacking the reporting to drop chaff for the racists.

The threat of false flag operations. This sort of site feeds confirmation bias. Wait to see if several credible sites pick up this news.