The issue here seems to be more of why it's good to have a way to "UN-Dislike" a post that's made by mistake or in anger. I was talking about the "Unthank" choice. (I assumed there was both an "unthank" and an "un-dislike.") I can see how clicking a "Thanks" without writing anything shows appreciation of what has already been written and is conducive to further posts, but I guess I can't imagine a reason to unthank.
As for the problem with needing an "Un-dislike" why put a "dislike" at all? If someone wants to be critical, they should write it out (or have the button require a reply before it can be clicked), not just lob unexplained dislikes from the sidelines. It's a forum, after all. Writing out a disagreement can be helpful, but just clicking Dislike helps no one. If there must be a negative choice, how about something civil like "Don't agree"?
Ok, lets forget I mentioned the un-dislike for a moment and focus more on examples of unthank / unlike. For starters, I think members are already expressing their reasons for wanting an unthank or unlike feature as opposed to pop-ups in this thread.
In addition to what members are already saying, let's not forget that a Like or a Thanks is an endorsement. If a highly reputable member likes / thanks (endorses) a post, other members that see they liked / thanked that post and knows the endorser will more than likely hold higher credibility for the post being liked / thanked. Keeping that in mind, lets say further research proves that the post was using false information, forged documents, or maybe they simply missed the target for accuracy. In this instance, the member that endorsed (thanked / Liked) the post may want to retract their endorsement as to no longer be associated with misinformation.
Misinformation can steer newer members the wrong direction and possibly discredit the endorser for supporting such a thing.
People don't always look at all the facts & do all the research before replying, thanking, or liking. So when evidence arises that proves something different than it states, I think that members appreciate the ability to change their stance on it.
Removing the ability to cancel an endorsement will lead to hundreds of reported posts to staff asking for them to be removed by us. I would like to think that members are capable of moderating them self in matters such as this. The like / thanks / dislike feature provides a fully functional member expression tool to let everyone know how they feel about a post. One thing you may not have known is that when a post receives a certain amount of dislikes (undisclosed), the post is auto deleted. That's self moderation by members at it's finest. Members deciding what they want to see and what they don't want to see, or what they want to endorse and what they don't want to endorse, or even what they changed their mind about.
I can understand your view on this and appreciate the suggestion. I just think that at this time it's more beneficial to the majority of the members to not subject them to a popup confirmation or to remove the ability to unthank (remove endorsement)
Eric Lyon