Is there a 'subscribe' feature?

The old site had a subscribe button to follow a thread without posting to it

There’s a box under the thread with a bell that says “Normal,” with a down arrow. Press that, then select “Watching” or “Tracking.”

Edit: it changes to “Tracking” automatically when you post or reply, but you can change it any time.

What does Watching/Tracking do… send an email??

Robert, good to hear from you again.

Ah, many thanks!
Good to hear from you