Well there actually are grinding groups already. On pvp servers getting into kesh is almost always a guaranteed death. There is usually at least one guild waiting for people to zone in, they just stay mounted and follow you till the shield drops. In epic kesh the strategy for "farming" the zone is to have one pvp group at the zone in and one doing the actual mob killing. As any smaller guild can tell you "owning kesh" is a bragging right coveted by most the larger guilds.