It would be awesome if I could see how many times each tag appears when editing, perhaps with the option to sort by number of occurrences, so it's easy to prune / organize them. Perhaps this number could appear in the red area below? 

What is the proposed idea/solution?When filtering by tags, I often want to remove one of the tags from a filter. I would like the "x" to appear when I hover over any of them, so it's easy to do this, without having to scroll down through a (huge!) li...