Great...I did get an email.

So part 1 is covered.

But what about part 2?

add to the thread by simply replying to the email that was send?
That does not seem to be covered or supported as the mail is send by 'noreply@sdl.com'
it would be nice if there would be means to do that, but it would not be a disaster if it is not a supported feature (I think)
Chris, do you have an opinion?

Great...we will see when it gets there.

Now for my own education why did you need to add the email notification widget to the forum?

Because in my profile settings I have the following email settings which clearly did not do what I was expecting...
Or does one need both things set in order for things to work as expected.
So do I need to see the settings in my profile as a 'general' switch and the email notification widget as a means to 'subscribe' to a specific forum?