I wouldn't use the presence/absence of strings in the client as an indication of anything either way, actual mechanic/behavior is what matters and for now it works... (there are other strings leftover for 8.x that are irrelevant to classic)

But yes I hope it'll work everywhere for a long time _and_ we don't get a griefer bad rep

I also agree it's easy to wipe a mboxer for any group of player, probably N-2 players can kill an N boxer easy

Getting an official statement from Blizzard about their intention would be nice though
(like a blue post "yes follow works in classic even in pvp, like it did in 2004, and it will work in BG too because we found better ways to identify botters" or some such... but I am maybe dreaming)