Having taken time to actually read this link I am now confused. Is this the policy referenced in TFA? It seems like it would be better described as an Anti-Harassment HOWTO for conference organizers, a thing which clearly would be beneficial and not at all harmful. Describing it as a "policy" and referencing the Ubuntu code of conduct suggests that this is some kind of affidavit that each attendee would have to agree to live by, which sounds draconian and unreasonable.