My main comment, why can people proxy when this is about human interaction?
I was about to write this same exact comment, but @livinguktaiwan said it sooner and better.
I like the concept of this new rep system, but if people start delegating thier votes to someone else, won't we very soon find ourselves in a situation where very few people will be able to choose who is worthy of a good rep... and who is not? Not sure this is something that aligns with the core idea behind this new rep system.