maybe a "Thumbs up" / "Thumbs Down" button?
BrawlVault will always be free of any and all criticism from others...There will never be anything for people to publicly judge someone hacks outside of that persons thread. There is the BV discussion thread in the News section. And form of voicing your opinion on things in Brawl Vault will never happen. This has been made a clear and solid fact for months. Just post in their thread if they hack one.