An additional voting scheme might be very useful, especially for public challenges like ours: a basic "like" option, like Facebook, with no "dislike" to vote down. Turns out the "disagree" opportunity has gotten a little nasty in a few cases. Some people are very competitive.
If a moderator changes the status of an idea to "completed", yet the community feels the idea is not 100% complete, then what should the community member do ... challenge it (how?) or open an additional idea which only addresses the portion that is not complete?
I am suggesting that the "completed" ideas can be "challenged"