You might be better off posting this on the now-official forums over at
SoE/VG. While I'm not a fan of the tells myself, I'd rather see time and effort spent
removing these traders, and code implemented to stop the dupes and other exploits, than to see them code filters. "Quick and easy" still requires manpower... which may (from what we've lately read) be at something of a premium right now.
Anyway, to cover your bases and ensure visibility you should post this over there.