Similar with powerlevelling in places like Unrest, the PLers (as with some bards) couldn't give a toss who they're annoying and who loses as a result of their actions.
The likes of Rogean/Hobby/etc could take a stance, but either way they'll piss "someone" off and there will be bad news bear posts on the forums
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As someone who's levelling, I know which side of the fence I fall on...perhaps the difference is I'll stay on that same side when I get into the 50's.