Email represents three important abstractions of the real life:
First, it's a task queue. And you're the worker that processes the tasks. Anything that helps an email service to be that abstraction is very good for users -- prioritizing, postponing, auto-processing, branching, delegating, etc.
Second, it's a log. As the article rightfully says -- an immutable one. Again, anything that helps email be a good log is very good for the user -- search, filtering, archiving, etc.
Third, it's a file storage. This is the most overlooked part, unfortunately. Search, sharing, organizing into collections -- all that would be of great help to users.
Yet, Google pushes that silly AMP :\
First, it's a task queue. And you're the worker that processes the tasks. Anything that helps an email service to be that abstraction is very good for users -- prioritizing, postponing, auto-processing, branching, delegating, etc.
Second, it's a log. As the article rightfully says -- an immutable one. Again, anything that helps email be a good log is very good for the user -- search, filtering, archiving, etc.
Third, it's a file storage. This is the most overlooked part, unfortunately. Search, sharing, organizing into collections -- all that would be of great help to users.
Yet, Google pushes that silly AMP :\