|It has been my experience that although the smileys may disappear, the points do not. You are welcome to try out the theory on one of my images so that you can be certain not to damage someone whose images you value.
Just write 19 of your 20 critiques for the day, critique one of mine and then go back an hour later to edit the critique and then return after 15 minutes to see if the points have vanished. I think you'll find that the points remain but the greenie is gone.
Menelaus Blue Morpho (74) *