Hot answers tagged discussion-board
If you are using SP2013/2010, there is a feature for what exactly you are looking for. 1) Go to the document library. 2) Select a document(by clicking the check-box). 3) Open the Library tab from the ribbon on the top. 4) Click on the "Tags and Notes" link on the ribbon. 5) Click on the "Note Board" tab on the Popup. 6) Write your comment and ...
Out of the box, it's not possible to get notifications unless you are mentioned or replied to. All Newsfeed settings can be found at About Me > Edit > ... > Newsfeed settings Reference: Change your newsfeed settings
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