Comments on ideas don't always stay focused on the original idea. Sometimes...most of the time...comments on an idea will spiral into other ideas. It would be great if there were a way to take a comment on an idea and "promote" it to a new idea. This way the new idea could have its own linked feature, etc.
With the promoting it to a new idea, an email notification would go to the person who made the comment, and a link to the new idea would be added near/on that comment.
Right now, I manually copy/paste the comment into a new idea, set the creator to the person who made the comment, and then post a new comment in the original idea saying it's been moved to a new idea. It'd be great if this could be more automated.