Sometimes I feel that I really like someone's idea that was written in a comment and I don't want write needless support comments, such us "Good idea, John!". It would be nice to upvote comments in discussion.
As you likely know, commenting ability is currently available throughout Aha! This allows users to communicate on records across the application.
While we can understand the potential benefits of lightweight actions around upvoting comments, we feel that the existing functionality can serve the same purpose without the need to build out additional features.
With this in mind, combined with community feedback and current priorities, we are unlikely to make changes in this area. We hope you can understand.