It's rather disappointing that Cloudflare's policy is to not host content that is "illegal, harmful, or violates the rights of others, including content that discloses sensitive personal information, incites or exploits violence against people or animals, or seeks to defraud the public", but they do not apply that same policy to content that they provide DDoS mitigation services for. I don't see why their policies sh…
I know you aren't advocating that other sites be taken down, but that is the effect of allowing DDoS against a site. Perhaps you don't mind collateral damage but it should be acknowledged as a consequence of your suggestion.