SavoryBeetle

For 1), Sadris showed that the feral attack power + kitty dps to weapon dps ratio is decreasing, which indicates that we will drop farther and farther back from pure dps classes. The stat comparison was intended to refute the belief that druids made up for this dps difference by gaining more from stat increases than other melee classes. Since no items will just have strength or attack power, however, we should to compare the effect of the other offensive stats on cat/rogue dps. For those who don't read the druid dps theorycraft, strength and agility have an almost equivalent effect on cat dps, with agility pulling ahead slightly. How does agility compare to pure attack power for rogues?

For 3), the Pillar of Ferocity gains 47 strength over Wildfury Greatstaff because we are going from a purely tanking weapon to more of a tanking/dps hybrid weapon that Blizzard seems to be converting all feral gear into. A dps comparison from Terestian's Stranglestaff to Pillar of Ferocity would be equally invalid. Itemization will cause a lot of fluctuation to the exact value of dps upgrade, and we shouldn't take that into account when looking at overall scaling.

EDIT: oops...name of poster, and wording was wrong :P.