Rogues rely so heavily on damage from backstab, and the backstab damage on their primary weapon is the *one* stat they need to focus so much on. The damage from this stat also scales up tremendously the higher it gets when you combine it with other buffs that increase damage %, like death march, donor buffs, shammy buffs, etc.
The issue I see is in relation to the donor weapon augs. Left/right eye has 95/105 BS damage. The best weapon aug I've found (I may be wrong?) is from Khasva and has 26? That's not a large disparity in damage, that's a downright different class imho. There are a remarkably large lack of augs in the game that increase this pivotal stat for rogues, and it essentially boils down to "donate and you are 5x better than you can be if you don't." No other donator type item is quite this powerful comparative to end-game. I understand that VT has yet to be released, and I'm sure there are plans to implement higher damage augs there, but the disparity would still exist even with 60+ damage augs there (and adding such large augs would only further boost already extreme damage for those who have both eye augs).
I have no issue with donating, I've done it a fair bit myself


edit: had this posted in another thread, but it seemed like it might derail that persons original post so I moved it here.
---And on a completely unrelated matter, I was considering adding/changing out another toon, and was breezing through the donator weapons as a means of helping me decide what class I might want, when I stopped by the enchanter weapon. The 1.0 is fine and good, a higher level dire charm is superb, especially in conjunction with the robe that lets you charm mobs flagged as uncharmable (minus bosses, of course.) But the 2.0 buff looks like a joke to me. It's essentially a very lesser form of death march (DM4=+25% damage and kiss of life proc and has 100% up-time so long as sk has mana or the dsk1 ring, donator enchanter 2.0=+15% damage and 350 lifetap and only has about 65% up-time when factoring in focus.) Enchanter 2.0 buff really needs to be, well, buffed up imho. That, or change it entirely to something else, like a donor version of euphoric spasm. It's not useless, really it isn't. It's just less than half as effective a buff that a tank class can chain cast, which seems a little silly.