Actually they do, I have a contact who had a version of the game (patch) BEFORE it even went live on the official servers! That's correct, you read it right, we, the private server community, actually had the new version of the game, that you couldn't even play yet on the official servers yet because it hadn't yet been released...! I want to say it was only by like a day or two, but still, I consider that HUGE. Example: We had version 10 when official was still on 9. They released 10 "live" about a day or two later (or so)... So in at least that one scenario (and maybe more) the private server community for this game was actually AHEAD of the live (official) servers!
That also clearly demonstrates to me that there is clearly an internal leak! There's no other way we could get the official files BEFORE they're released on the official (live) servers! That's also what makes this game different from others, in that, we're dealing with the official server files, and not an emulator...