I think it's funny how he says 50 SOs are for rookies. I don't really pay much attention to sets half as often as everyone else does. Sure, when I actually get to the point where I feel I need to wave around my e-peen in PvP, I might start bothering with them. But I play different than most.
Sure, I get wiped out in 5 seconds if I go to a PvP zone, but I don't go often at all. And the sets I do use, I find, or immediately benefit me. ((For instance, the +4 knockdown resistance on my Bane Spider is nice.))
In any case, I never respec and fail to reslot any inventions I do make. That's just plain silly.
Also, I laugh at AE test tube babies. "Farm farm farm" is all they know.