The lagwipes seem to have been fixed, but an extremely common complaint is that the red-green puzzle doesn't work. I.e., people die whether they move or not. I've been trying to catch it happening after Deathwyrm runs and haven't been successful until today.
At 0:05, I do a /loc and then I don't move at all for the remainder. At 0:06, it cycles to red. At 0:14, it cycles to green. At 0:16, I start turning, but do not move--this is allowed by the rules. At 0:30, I bite the dust. A subsequent /loc shows I haven't budged except for the angle.
Sorry for the terrible video quality; my system isn't top-line. Here's a screenshot after death. Notice that, weirdly, there is nothing in party chat saying that I've died.
http://i58.tinypic.com/6tlhcz.jpg
So how is this implemented in practice? How can I be not moving at all over a number of cycles of the lights and then suddenly die without moving? I've been in many parties where people (including me) have had their hands completely off their keyboards and mice, with the puzzle cleared of monsters, yet we'll die when the red light comes on.