It wasn't just this past weekend. The lag has been steadily increasing since the last server reboot. It's almost as if there were server side memory leaks that continue to grow.
It is also not just DoJ. Lag has been really bad the past week+ in DoJ, Deathwrym, Fire on Thunder Peaks, Mark of Death, Shroud, etc. Pretty much any end game raids with more than 4-5 people in them lags repeatedly now on Ghallanda.
We just wiped on an LH Shroud run earlier tonight due to lag + Portal Keeper spawn. All we could do was sit there and watch it fail while we were stuck in a massive lag spike. We were even short-manning it with 9 specifically in an effort to minimize the lag. The effort was in vain.
The game has severe performance and game-play impacting problems since the datacenter move and has not shown any signs of getting better in the nearly two months since. Mind telling us what sort of compensation you're planning to provide customers for this?