I'm not saying they aren't effective. I have a good K/D with snipers and use them almost every match. My argument though is how much more effective are they other than an AR. I'm using the R8 because of it's high damage and good range and I'm finding that bursting it will most often lead to quick kills over very long distances. Having good eyes is really the only equalizer. You don't have the luxury of a good scope but as long as you can make heads or tails of targets far away there really isn't a need for one.
All I'm saying is that ARs can easily substitute.