To be consistent with our goal to promote enlightenment, critical thinking and learning, we have changed all the reactions to comments, posts and other pieces of content. Now we have the the following signs:
Light bulb: to react to something that enlightened you
Refresh: to react to something that changed your view
Question mark: to react to something that you think needs more evidence
Disagree sign: to react to something you respectfully disagree with
Our users are not pursuing likes, they are trying to challenge their views, enlighten other people and seek wisdom.