I think it's the act of creating an access point that allows posting when you get spam, not necessarily if it's curated. Your email isn't a curated feed but it

I think it's the act of creating an access point that allows posting when you get spam, not necessarily if it's curated. Your email isn't a curated feed but it will get tons of spam because people can "post" to it once they get your address. Sane with your cell phone number and your physical mailbox. Since a community requires posting and an access point, spam is pretty much inevitable.