Nothing in the game engine related to communication has drastically changed since Classic. It’s a known fact for everyone (other than a few of you I guess) that WoW never uses more than 200 KBps for anything gameplay-related, and I’ve never seen it personally get over 125KBps (1 MBps) in any situation when monitoring.
If anything, 40-man raids in classic might use more data (in raiding) than whatever we have now, barring epic BGs.
Like I said, I’ll post later with actual data from my gameplay (World, BGs, Raiding).
I know data will be skewed upwards due to potential packet loss, so that only further helps my point…
Finally, I’m majored in Comp. Sci, specialized in Network Security and work as Network Admin/Engineer for a living, so these credentials should help my assessment a bit.
Have some more posts about current WoW, since you’re both deflecting assuming Classic was that much slimmer:
Curiously enough, through my research, I’ve already seen how a few of you treat actual network admins so… I’ll just let this rest: