Reactions feature feedback. Users like this feature, but are confused as to why it doesn’t apply on text labels and shapes, which are used just as much as notecards (in our environment). They would like to see this feature availability on all bluescape objects.
Also, more than a few people mentioned that although the smiley-face is the icon that indicates the reactions menu… no smiley face is actually available to choose. Not sure how important this is, but I have heard it at least half a dozen times by now.