Originally Posted by Chrysanthemum

Well considering his level of gear and his idea that prot warriors are "gimped", it's very likely your suspicion of his lack of knowledge and that of his guild's to be correct. His post was more or less the equivalent belief of many other's that "Hey your lock topped charts in X dungeon so they're fine". Here are some points to address for the errant prot warrior:

1) AFfliction DPS is highly luck dependant if matched side by side assuming mobility is any issue. Lag plays a severe part in keeping dots up as well as missing GCD's can be huge.
2) Debuff limit (while ZA probably won't see the debuff limit, it's also possible due to huge amounts of debuff slots afflict takes up)
3) Several talents are bugged in the tree itself. Uncertain of whether shadow embrace is fixed or not but there have been varying reports that it only works for one player regardless of how many stacks it.
4)Gear, Considering your main is in ZA/T4-early T5 gear, I'm assuming your guild isn't well geared across the board. as a result, the gear disparity might not be too different between his lock and yours. (My rogue for example outgears a few main rogues in my guild) Add that on top of your warlock being geared towards destro and your lock probably freshly tuned to afflict and that can explain a lot of the dps difference. Especially since you more or less suggest the lock in question is a newb to his class.

Ghostcrawler did recently post though (in the BETA) forums that lock dPS arent' quite where they would like it to be so here's to some hope.

IMO, the biggest problem so far has been Demonic Sacrifice. Gear and such was previously based around Demo Sac and shadow bolts (see T6 to reflect this). Now it's being radically shifted to another direction without really shifting the gear to compensate.

I think Blizzard is taking WArlocks in the /right/ direction. (I don't look forward to another 10 levels + year of raiding hitting shadow bolt) However, the idea isn't very fine tuned IMO.