[Feature] Follow specific topic and be notified when there is a new comment....
User is interested to follow updates on
specific topics only. He gets updates ( via email - e.g daily,weekly updates or notification ) only when there is a new unreaded post.
For example, he can click on
"follow button"to do that - something similar what you can do on Quora....
He can see what topics he follows in profile and manage settings there - notify me daily, weekly, monthly ...
EDIT just realized that there is something similar like