Is there a way too see number of “likes” and number of “comments” on each discussion?
I am using vanilla 3.3
You would need a plugin. If you give more information where you would like to see it, we could give a better answer. The number of "likes" depends on which plugin you use. The number of comments is in the discussion table in the column COuntComments and that information should be always available when you already see details about a discussion.