For me what upsets me is that if I want to find a random PuG , GS has made it very hard. Before GS the PuG leader would take a quick look at gear or armory and decided on that, now it is all about over 5k GS to even be considered which on my server I see a LOT of players with 5k and above and so takes all my toons out of the running to get into PuGs.
Yes I could start my own PuG BUT I want to spend an hour or so running a Raid e.g. Ony 10 Man, not the whole evening putting a group together. Spending and hour or two running a Raid was possible before GS.
Let's hope Blizzard bans the GS mod lol