There is a difference between policing the data and welcoming spammers by: - providing official' support for large quantities of spam. - refusing to fix the bug which enabled inscriptions No one is claiming all spam can be stopped but deliberately removing friction for spammers is not a good idea for the long term health of the network. If spammers know that the network is hostile to them and there is a chance they will get rugged at some point in the future then that's a huge deterrent to VCs funding large scale spammers.