[brudgers]

Why not group emails?

Email is a push technology. And the receiver has to manage their inbox for the sender’s enthusiasm.

2-3 weekly emails

A web page could update in real time. It would be more work for the sender. And less work for everyone else.

[sethammons]

That doesn't track. As a recipient, checking one location for updates (my inbox) is easier than polling N websites for updates. If I had to recall all the various websites for everything I need updates for, I'd quickly miss updates.