Hello,
I am a forum admin/user at our php (3.3.14) forums here: https://htmag.co.il/phpbb/ . 

Can you please add an option to configure so to auto-register  to a topic when one  opens  a new topic, and when one reply/quick-reply to any topic?

We have done this  [hard]code change  in our forum and this proved to improve the user experience.

Thanks

Rafi