Every human being with brain and heavy weapons skill. I lack the latter, so I use SAW. Not to mention no-running penalty. Also I use it and also looted some from lawyers in sunday evening battles, so I suppose you just don't play or don't pay attention to what is used by other players. To tell the truth most people say miniguns a better than most MG's, but for me LMG's are friendlier and more forgiving for control mistakes I do. So for me SAW supplements the need in crowd control weapon. Maybe it should be tweaked, but only carefully, so we don't get some another meta-weapon covering half the map in the spray of bullets.