„I was constantly messaging people telling them to use a competitor and I was banned.“ the entitlement of these people blow my mind.
Of course, Freenode is free to decide that my mentioning Libera was a reason to remove me. But I didn't see a clear policy forbidding it (though the policies have been changing daily, so I might have missed it). Just as Freenode is free to remove people, people are free to move to another network. And that is what is happening.
My main point in my blog post was not, "I have been wronged!" My point was, "Freenode is doing this to themselves, but it's OK because Freenode doesn't matter."
The whole idea of purchasing a business for its customer base is pretty disturbing in the first place. I as a customer do not consider my relationship with any business to be a transferable asset.