In the same way that your spam filtering is censorship or your ad blocker is censorship. Spamhaus isn't preventing anyone from putting anything anywhere, they

In the same way that your spam filtering is censorship or your ad blocker is censorship. Spamhaus isn't preventing anyone from putting anything anywhere, they provide a service that others can use so they don't have to see it. This post in no way is a comment on any of Spanhaus' practices which has garnered some criticism.