Clarification on outdoor swarm kiting

[Bikthek]

Lets say I am a level 52 bard and I need to make some plat. The best place I know to earn money fast is swarm kiting giants in Rathe Mountains. I picked up all the spawns I can see and am kiting as usual when I start to get nasty tells that I am going to be reported and that I can't take all the spawns in the area.

I am aware that people can camp a single mob in an outdoor zone but no one seemed to be camping anything in particular. There were a few other people in the zone also hunting giants but I tagged the kills first so no kill stealing happened. No one was trained because the giants are all following me.

So the real question is does taking most of the giant spawns violate the play nice policy? Is this something I could be banned for?