I haven't seen the tread, but I know I've been involved in a keep defense where a particular sorc was killing us from the first floor using spells she needed LoS for, but was able to hit us despite the fact that we couldn't see her.
During that same fight, the same sorc was able to hit us from well beyond max distance when we were defending the walls. For example, she was able to kill a Shadow warrior we were with who had a max range of 110 feet, but he couldn't hit her cause she was out of range.
We reported the sorc and I haven' seen her around for a while......
Morgrim - Ironclaw Server
Rank 40, Renown Rank 31
Immortal Guard Guild
Loaar - Retired
Galka, Pheonix, Serene LS
RDM 75 / PUP 75 / NIN 75