The PvP Mentor Icon doesn't really say "PvP"

[Enlial]

I see your point, but how does a flag say "pvp" any less than a crown says "mentor"? For all a new player knows you could be the king of uldah. I agree the choice is bizarre and pair of crossed swords or something would make more sense, but people still wont know what it means until they ask.

You can't teach now since we don't have chats, unless you create alts all around the data center

It shouldn't be used as a "Listen to me because I have this icon beside my name"-icon. What struck me about the op was that it sounds like he doesn't intend to use it that way at all. Most of the replies here seem to have not picked up on that.