Nah, they look at stats of what is being used vs not used. Which of course with this community is one in the same with what people cry about needing to nerf. They want to switch up metas so the game doesn't get stale rather than just doing the intelligent thing and getting rid of metas altogether. I would rather have a Crucible with less lag and better matchmaking that made us all use standard perkless weapons than this Crucible we have now. Yeah it's a lot of fun bringing different weapons and perks into PvP, but there are so many perks and so many archetypes, it's impossible to perfectly balance them all. Which is usually why one archetype with one set of perks becomes the best choice. So really, it isn't much different than if we were to all use PvP weapons on an equal plain.