Point-blank,
IMO private / rented servers encourage cheating, hacking and most of all, favoritism. All the while absolving the publisher(s) of any and all responsibility for the content presented online. It's one of the reasons DICE / EA opt'd for a third party anti-cheat solution rather then taking responsibly to manage BF3 on their own. Not to mention doing so is far simpler / cheaper then having EA's in-house staff work the problem full time. Now had EA taken direct responsibility, it's likely that the EA would of solved most of the problems with hacking, rather then just allowing the status-que to remain as we see it today.
Beyond all that, by having rented servers EA can reap the profits while having local admins (hopefully) police the servers. Problem with solution is that from one server to the next, the quality of the admin'ing can vary greatly. Everything from admins that ban for language (never did understand that one considering the voice overs that are built into the f'n game), to admin's that are non-existent. All things being equal, it's very a rare thing indeed to see an admin who is actively online enforcing the rules while remaining unbiased. Now as I understand it, server admin's run pretty much unchecked and can do what ever they feel like with a server. (Yet to ever see a server admin removed) This really makes me wonder, who's policing the admins if not EA / DICE ?
Therefore it is my belief that relying on said admin's to represent VU's / Communities "best interests" is at most wishful thinking. You know their's an old saying: "Wish in one hand, shit in the other. See which one gets filled first."
Cheers!
Resin