No shit. But spam filters are one thing, censorship quite another.

In fact, central banking/fiat currency types argue the same thing: if anyone could just spend their money however they liked, it’ll be used for terrorists! So we need to KYC you and know everything you do.

In an open protocol, things like spam filters will be built naturally as a response to spam. The problem with centralized platforms is this normal, necessary filtering gives way to something worse.