If possible it would be good to have a LIKE button for each post. Please don't confuse this with Facebook LIKES. I'm talking about a LIKE button or link we could click upon that would simply list the names of all the people that LIKE a particular post. The list would appear at the bottom of the particular post.
So often I will read a post and benefit from the info or pics, but I don't have anything of real substance to post back, other than "Thank you", or "I Agree", or "I enjoyed it" and I don't want to clutter the thread with a post of just a few words. The LIKE button would be easy, convenient and serve well to let the person know their efforts in posting are appreciated, without cluttering the thread. It could also encourage more quality posts in the future.
No need for complex tracking and notifications on the "LIKE" feature, as vBulletin forums do. Just a simple list of those members who clicked the LIKE button would be sufficient.