ActivityPub is a protocol. It can try to define itself as a community all it wants, but at the end of the day it is as much of a community as SMTP is a communit

ActivityPub is a protocol. It can try to define itself as a community all it wants, but at the end of the day it is as much of a community as SMTP is a community. If a for-profit company wants to send e-mail notifications to its users about blog posts--and even if it also wants to embed really horrible advertisements--it should not only get to send e-mail, it should be encouraged to send e-mail instead of only using proprietary centralized replacements for e-mail (such as mobile push notifications).