I'm fairly sure there are a million posts about this already, but I'm not just moaning I'm pondering ways it would be stopped.
Everyone must be aware by now that a lot of people like to wear pvp gear to get into dungeons. In regular dungeon heroics it was tolerable, and they could still be done.
But now in these zandalari heroics, people still are, and it is causing a lot of problems, at least from what I am seeing. People turning up in near-full vicious, or even bloodthirsty, simply able to get in because of the item level the gear supplies, and not sufficiently participating to the run as they are wearing pvp gear, and I hate to be the bearer of bad news to everyone who does it, but resilience is about as useful as a wet toilet paper roll in a dungeon. It is especially horrible when the tank or healer is in full pvp as they are support roles and need all the stats they can get their hands on to perform to a standard, especially against well-geared DPS.
It has caused so many of my runs to end before the first boss is even killed, and since call to arms hasn't done anything to dungeon queues, these are infrequent dungeons I get to do only to have them cut very short by some fool in pvp gear thinking hes all that and a bag of chips.
A simple solution: stop pvp gear from scaling item levels, or at least have PvE and PvP item levels seperate.