Guild Wars 2

Not really a bug, but I have no idea where to put website suggestions.

It’s a simple one, like any other forum I’d like to get an email notification when I posted in a thread and that thread gets replies. I don’t feel like bookmarking every thread I post in and email notifications help me when other people reply to my posts.

(Of course, also the presence of a checkbox to unfollow a thread)

There is the option to get email notifications when a “subscribed” thread gets a reply. It’s in Forum Profile – Edit Profile.
I think your idea is good, but it can be argued that it’s unnecessary with the subscribe functionality.
It would however be nice to have an option to automatically subscribe to threads you’ve created and/or posted in, effectively creating what OP asks for.

The subscribe button doesn’t work, it won’t give me an email notification even though I turned it on in options. And yes, an automatic subscribe to threads you replied to would be nice.