Say what? Bigger and Bolder and more Challenging somehow translates into "Divorcing himself from his performance" and means the movie will suck? Yea, OK, sure...
I think the person commenting on the thread is insinuating that the film/effects/explosions/scale is transcending what Star Trek should be, an essentially character driven piece of moral and philosophical platitudes and notions, with a sci-fi twist.
At least that's what I assume several of those posters were getting at. And we all know there is a section of fandom who feel that way too.