AFK on multiple characters in a battleground

I’ve noticed several cases of people AFKing on multiple characters in the same epic BG. They do this to farm honor levels since they are shared across battle.net.
People have been doing this for years now and I’ve been reporting them but they don’t get banned.
Why are they even able to do it? It shouldn’t be possible to queue for BGs on like 8 different WoW accounts on the same Battle.net account.
Do it like you do with the pet battle pvp. “Find Battle is locked because this account is logged in multiple times.”