why?

i have a question, who rates all the sororities and fraternities?? because a lot of the comments in each organization are not even true! tri delt for one i saw a comment saying they are not involved? i see these girls at every event! the are the biggest supporters that i know of thus far! and for Phi mu, how does anyone even know them enough to spred rumors about them? they are way to new and a lot of the stuff said aren't true about them either like drinking in their letters or being fined if they dont go to the events are all lies too. I dont know if i am too new but i havent seen anything bad about anyone since i joined the greek life i see unity, but hey that is just my opinion.