This is actually far from Matt's first rodeo:

He described Movable Type as "desperate and dirty players" for having a section in their docs on how to migrate WordPress content into a Movable Type blog.

When Envato started allowing people to publish themes they had created with a proprietary license, he retaliated by banning any developer on the Envato platform from speaking at any WordPress-related event (sound familiar to punishing the users for a disagreement with a platform?)

Wix was accused by Matt of using WP's mobile text editor in violation of the GPL. Wix showed that they had actually adhered to the license terms, and then forker their own version under the MIT license.

> one particular company (arguably one particular board member of such company, the SilverLake guy), that he now sees as parasitical to the ecosystem.

He went after GoDaddy in 2022 for the same reason, to the same extent.

Interestingly, for someone who has such hatred for Private Equity as "leeches and freeloaders and parasites upon open source software and communities", the ONLY other active member of the WordPress Foundation board (than Matt) is the Managing Partner of a Private Equity firm that Matt himself appointed.

This is not his first misstep, by far.