[Xero Shade]

Add a Like/Dislike button to the topic.
People will be able to show that they like a certain idea, and that the general masses have a desire for it to be implemented, without having to type "+1, I approve", and add a comment that

2) When commenting on someone else's suggestion, be constructive, especially if you are being critical of the suggestion.

Might not be constructive in the aspect that it makes the idea better.