Hmmm I might of overlooked part of the design here:
- When you follow a topic the default email settings are to email you when followed topics are replied to
- You're only notified of topics you've created, follow, or are referenced
I'm a little hesitant to auto follow topics you post in, but I think that's probably the best route here. I'll try and get this adjusted with regards to email (perhaps I'll disable email notifications for forum posts).