@alpha1beta @chris @ramsey @skc Most forks of #WordPress start out strong but fade away over time either because @WordPress rolls their best features into the core (I think this happened with WordPress MU) or lack of support & interest from the community overall.
To my knowledge #ClassicPress (https://www.classicpress.net) is the most active fork of WordPress right now, but I only know of a few sites who use it.