What is the ruling on allowing those affiliated with the the "Al-Ahbash" sect to post in forums, given that we know they excommunicate Islamic scholars, spread Sufi fallacies, and allegorize Allah's attributes?

The Habashis (Ahbash) sect is astray, holding grave innovations (bidʻah) and dangerous intellectual deviations. It is not permissible to allow them to address the public or spread their poisons through any media outlet, as that entails an invitation to deviation and cooperation in sin and aggression. Every Muslim must beware of them so as not to be deceived by their call.