[kevincox]

Yeah, I see RSS and newsletters as largely equivalent technologies. The have minor technical differences but 99% of the read differences are social.

Pro Feeds:

1. Once you subscribe the publisher has no way to contact you. Email relies on the publisher being honest.

2. Provides some history (or full history with archiving/pagination atom extensions)

Pro Newsletter:

3. Push based system by default (Feeds can use WebSub but it isn't that common).

4. ~everyone already has it set up.

At the end of the day they both transmit blobs of HTML to you with some minimal metadata.