Forum Subscribe to thread by default Please help
 

I asked this question a while back but never got a successful answer. Please help.

On this forum when members reply to a post I would like them to be automatically subscribed to the thread. I know this option is available for them underneath the new post form, but I think it will take up a lot of time having to scroll down to check the checkbox every time, and some never realise that the option is there. So I would like to turn this option on by default. I have seen many forums with this enabled.

How do I fix this?

Thank you...