Earlier quoted context omitted.
A lot of devs and PMs under age 30 have never heard of RSS, or if they have it's not something they ever used, and not top-of-mind when it comes to features.
Maybe, but another thought I had while scanning newsletter services is that they haven't really evolved or changed in many years. Substack would suggest email isn't quite dead, but email feels at-risk. That said, I support both newsletters and Substack but I do a lot of manual copy-and-pasting. I also had to hand-code my own Wordpress newsletter content script to generate something that could then be cross-deployed t…
From my viewpoint, most of the development in email tools over the last decade has been in the data processing realm.
ie, collecting data or improving the quantity and quality of integrations and then allowing newsletter senders to segment and personalise emails based on that. The more advanced tools allow for proper templating languages and ML based data models such as RFM, recommendation systems, etc.
Newsletters feel like a mostly solved problem with very little further product development required, from where I'm seeing things.