Subtle changes, bugs and feedback

I considered in the past it being based "do unto your neighbour", a weird thing that would basically nerg yourself when you nerg someone else. So if you were a habitual nerger then you'd just destroy your own rep and in doing so, your ability to affect anyone else's.

On Stackoverflow a +1 is worth 10 to the receiver. a -1 is worth -2 to the receiver and -1 to the giver. Seems to work