In WvW, some players are taking advantage of the windowed screen ratio and use AC to bypass the logical constraints you have put in place. This is a bug. Please fix it as soon as possible as it is imbalancing the WvW game.
Set a maximum screen ratio of 2:1 and a minimum of 1:2. I know people play with various kinds of screen setups and love it in PvE. So maybe block the ratios in WvW only?
Frór (yes, with the accent!)