We required auto-refresh for the discussions page/post.
In our discussions if any people responds for our discussion, everytime we need to refresh the page, (sometimes forget to refresh too).
After I got a inbox mail that i got a reply for my post only i will again go to my post & check.
If everytime i refresh my post page, (sometimes) it takes too much time/data to load.
So If anyother people responds for the discussion post, within 5-10 secs which reply should required to update automatically in the certain post.
Hope it really helps for everyone!!