I wish I had taken some screen shots even though I don't know how to edit them. However I'm not in favor of showing users any personalized vote statistics, so those screen shots would not be relevant. I also lean toward not showing the handles of voters to readers, so that part of the screen shot would not be relevant either. What's left is only a bare count of Helpful votes.
So the feature (trialed last month as part of the pursuit of this feature) showed which members liked a particular post and personalized vote statistics? Sounds like that is more or less what FT would get if the switch for this current feature was turned on for general FT member use during this poll for a "like" button (by whatver label "like" gets).
If people want the likes to be "anonymous", how does having the "likes" readily visible to any members -- even just FT moderators -- secure the purpose of "anonymity" of "likes"?