Is there a way to permanently set these options whenever you start or reply to a thread? Both for me and to the users?
I see in this very reply it's active by default, but I cannot find where to set in my forum...
The setting is "Watch threads wreplyingting or replying" in User Registration options in the ACP. This setting will apply for new registrations. Existing members who don't have this enabled (or wish to disable it) can do so from the Preferences in their account.