Amen... I play my allys on Fenris (PvE) and my Horde on Malorne (PvP) and take great joy in ganking, as I have been ganked numerous times and am well aware that whenever an ally has the opportunity, they will crush me.
However, I do draw the line at corpse camping, as it goes beyond the "haha I got you" and messes up someone else's gameplay experience.
That said, fishing and mining without panning the camera constantly (you get sick of it) is just asking for it, especially around competitive fishing/mining nodes and areas.