Most people here have a certain amount of posting history that establishes us to be real people - we say what we study, where we're applying, etc. Trolling the results page is simple - a minute's work for a good amount of other people freaking out. You'd have to be fairly dedicated to messing with us to first establish yourself (falsely) on the forums and then post fake results a few weeks/months later. It's certainly possible, but I've yet to see it.
I can't speak to NYU's program, but if you're talking about the Columbia PoliSci MAO program (and not SIPA), the quant method requirement is not particularly stressful. You'd probably take an intro mathematical methods course followed by game theory. There is also a seminar on qualitative methods, though that does not count towards fulfilling the methods requirements.
If you have other questions, I'll try to answer them.