Yeah, it can certainly be done in Silverstripe. It's just a question of how much time you want to put into it. Feedburner is definitely the path of least resistance. I agree that it lacks customization, and I've only used it when I'm in a pinch. Plus, lately I've been down on accommodating people who don't use RSS. :)
7 May 2009 at 6:12am
(Last edited: 7 May 2009 6:12am),
the subscribe feature on the forum module is not perfect.
onbeforewrite does exactly what it says it does - so people would get an email every time someone hits the save button - not good if the editor decides to make a change, hit save, notice a typo, hit save etc. Coding for that gets more complex....