PuGs are tough.

For a random group to be successful, there's a baseline amount of skill required. Especially in a raid, there's also some degree of requirement that people be around the same level either in gear or in skill.

I had the opportunity to heal Naxx-10 on Caze within a week or so of hitting 80. I'd healed a Heroic Nexus group through the achieve that requires you to kite Anomalus and not kill his orbs or some such, and they were evidently impressed enough to ask me to come with.. in what was probably half blues. It absolutely made my week. We did alright; I don't think we finished clearing, but again, this was back in November or December when most of us had not set foot in Naxx before! None of us were really being carried, we were all close to the same gear & skill level.

Nowadays, I'm very wary of pugging a Naxx-10 on Caze - indeed, of pugging many raids on Caze. I'm in high-level epics and I don't have a particularly effective threat drop. If the tank is a fresh 80 in half blues, half epics, they can probably tank Naxx and do alright. However, they probably cannot hold threat against me. I'm slightly less wary of heroics simply because things die faster and don't hit as hard.. if I do pull threat, I can usually either kill it before it kills me, or trust the healer to keep me alive through a few hits.

In a time where GearScores are often used for judging pugs - are those new standards just hurting people more than not? Bringing in one highly-geared healer is fine. A highly-geared tank is fine. A highly-geared dps, when the rest of the raid is in lower gear, may not be so fine. Sometimes it seems as if it would be better to have people in Naxx-10 gear run with others in similar gear, etc etc etc.

If a tank can't hold aggro, whose fault is it - the lesser-geared tank or the more-geared DPS? Replace the tank or the DPS?
If a healer can't keep the tank up - whose fault is it? Undergeared tank, undergeared healer? How do you draw that line?

Would love some input, I'm still trying to figure out how to deal with some pug groups.