i myself believe in some mid control whether premade or on pugs
you do it on a hunter/rogue.... you get flamed for mid farming, yet it can help reduce the number of inc to your defense. do it on my mage no one cares unless truly needed on D or O.
GY camping generally is caused by a mismatch, some say it's okay in PUGS and all is fair. imo, should not be happening in twink BGs. now if players stand back like parallel to healing huts and they run to you over and over....well i consider that the losing teams fault.