Can the folks running these boards please make " Notify me when a reply is posted" the default. I'm sure everyone posting in these forums wants to know when a response has been given. Maybe change the check box to read "don't notify me of a response".
I'm not sure but I always have to check the box to receive "response". Your response came directly to my email so "spam" is not a problem. The next time I post I will not check the box and see what happens.
Instead of checking "Notify me of reply" on every post, you can activate it once from your User Control Panel > Board preferences > Edit posting defaults. It wasn't activated in your case, so I've done that for you, you won't have to check the box in your future posts.
It isn't activated by default when you register because people rarely like receiving lots of e-mails from one same place.