I do like the system of "Gathering Kudos". However, I think it needs to be made more clear, particularly for new users, and especially for a period of time until the majority of users understand how it works.
I think some additional text and graphic cues could be displayed during the time that a Suggestion is gathering kudos. This might be a tad verbose, but you get the idea...
During the time prior to an idea being approved to gather kudos, a similarly explicit message could be displayed to avoid confusion. Something like: this idea is currently being reviewed. Please come back later to vote when it is opened for kudos. In the meantime feel free to post your comments.