That's the confabulation, yes. The tone looks outwardly accusatory, but the accusation is simply one of plain old (supposed) hypocrisy in how OP is managing the project. Such rhetoric is far from unknown whenever people complain about being snubbed when trying to contribute to a FLOSS, wiki etc. project.
But it is clearly a shaming attack on the contributor. The post calls him ego-driven, defensive, an inferior coder, and many other (mild) insults. Sure, it doesn't accuse him of being a friend of Epstein, but that is not the only way of attacking someone.