Chiming in with another anecdotal account to say the lag is still affecting me, at the least. Its been fucking up my scrip farm macros as I try to finalize my melds for patch day, and while running some content I was running so ragged people kept warp-hopping and bosses kept freezing in place and going unresponsive.

AT&T just told me to reset my router and then tried to get me to have a tech come out. I swear to god, they need to work harder to inform their representatives about known issues like this.