it's a self reinforcing decision as well. if you cannot, or explicitly establish a principle that you will not, infringe on speech, then you are not responsible for what people say. in deciding to moderate, or changing a system to enable moderation, you have placed yourself in a position of discretion.

now anyone who has influence over you will expect you to exercise your discretion. your friends and family, your advertisers, your government.

it's better to design a system that minimizes discretion, which was a core principle when designing my bitcoin deposits protocol