Help me understand AOE markers

[MrSeco]

you have to move before the red aoe ring is gone
or youll be hit no matter where you are.

countless times i see people sit in the aoe ring for too long and the complain that they got hit.

MOVE FASTER.

[Nellana]

You can also make the boss your focus, and the focus bar will have the cast bar above it. Target the boss and press SHIFT+F and it'll keep the thing you targeted as your focus.

[Ruprect]

you have to move before the red aoe ring is gone
or youll be hit no matter where you are.

countless times i see people sit in the aoe ring for too long and the complain that they got hit.

MOVE FASTER.

Oh yeah, explain this:

http://www.youtube.com/watch?v=G5g4TM1fkCg

This is from the other thread about this same thing.

Also, if you have less than 333ms lag you are not lagging out, the server checks your location 3 times a second (very slow).