@fmdavidhlevin said
In my experience, a feature that can be described succinctly can nonetheless be difficult or time-consuming to implement in software.

If that's the case with automated notifications for when someone has replied to a post, I would imagine that a website pertaining to the financial industry would tend to have more resources for website development than would a site devoted to chess.

Fair comment.

It just that when I see the amazing developments to this site over the last 22 years I didn't think it would be too difficult. My mistake obviously.

Cheers