It's a little too early to ingest this, I'm yawning and drinking coffee after another marathon Urbex day yesterday. I hope you have thought out the anti-abuse problem as humans always look for ways to make more (I'm Vulcan by the way).. however, I am willing to give it a try if it's now alive and kicking.
I never did understand this 5-minute voting window, not it's mechanics, but why it even exists. We did converse about this once, months ago.
On your post it's 50%, but it needs to be obvious to the voters that this is the case. A footer could work.