I want a free speech platform that allows any content from humans or bots, from any political leaning from anarchism to fascism. What’s the most mainstream platform that puts free speech first? I can only think of Rumble. There are some federated instances but they are usually small.
There’s no such thing. Unrestrained bots make it impossible for human community to sustain itself. Unrestrained hate makes it impossible for a balanced community to be sustained.
What you’re looking for will be a site full of bots talking to each other, with the only human presence being hard core bigots.