Originally Posted by
lawow74
1)It represents a path towards what many fear is pay-to-win in other game aspects.
2)They see someone with an insta-90 as an automatic bad and detriment to any group content, a'la the influx of Death Knights to the BC content straight from their starting experience.
3)They didn't 'earn' their levels the way other players did. Doesn't matter if they play spectacularly on their new 90. They didn't 'earn' it.
So in summary, it's bad for the game, bad for the community, and it's something else to thumb your nose at other people for.
Note the above are not my personal views, just a summary of what I see the top 3 arguments against it being.