Aren't witnesses suppose to be like UNL trustees? So, what would qualify as a UNL? When you say Unique, does that mean unique IP Address, MAC Address, that is the physical device of the witness, the node, the server? Do you want to hard-wire into the blockchain a mechanism for verifying unique nodes or IP addresses for each UNL? But what would you do when you run into proxies?
REDPOS would be better than something like DPOS to the extent that REDPOS can integrate REP into the DPOS system. Yes, it would stop the Tron puppets which came out of nowhere in February of 2020, at least in theory. So, I like this REDPOS idea. The details to how REDPOS would work specifically could be debated and tinkered with.
RE: Reputational Enhanced Delegated Proof-of-Stake (REDPOS)