Actually despite appearances, voat isn't an absolute free speech site either. They ban all kinds of things. These are the content rules for voat:

Rules: These guidelines are intended to keep people safe, protect kids, keep Voat running, and to encourage personal responsibility for what you do on Voat. You must:

Keep Everyone Safe: You agree to not intentionally jeopardize the health and safety of others or yourself.

Keep Personal Information Off Voat: You agree to not post anyone's sensitive personal information that relates to that person's real world or online identity.

Do Not Incite Harm: You agree not to encourage harm against people.

Protect Kids: You agree not to post any child pornography or sexually suggestive content involving minors.

Take Personal Responsibility: As you use Voat, please remember that your speech may have consequences and could lead to criminal and civil liability.

Subverses may create their own rules and enforce them as they see fit, providing they do not violate the terms of this agreement. You agree that Voat is not responsible for the actions taken or not taken by moderators.

Spam: You may not post any graphics, text, photographs, images, video, audio or other material that we deem to be junk or spam.

Respect other users: You may not purposefully negate any user's actions to delete or edit their content on Voat. This is intended to respect the privacy of Voat users who delete or edit their content, and is not intended to abridge the fair use or the expressive rights shared by us all.