While it certainly is not malicious in any way, I feel I have discovered a bug while waiting for WvWvW to open back up during last night’s down time.
If WvWvW is inaccessible if you stand at the portals in Lion’s Arch and spam your interact key to enter, a popup error message will appear. However each repeated press of the interact key adds another popup on top of the previous, each time darkening the screen’s gamma. Hitting this enough times can actually completely black out the game except for the popup. If you spam close the popups, your gamma returns to normal incrementally.
Perhaps adding some form of branching logic to the code that controls these popups to check for an existing popup before creating one would resolve this issue. Again, nothing game breaking I just thought I should bring it to your attention. Thanks for listening.