I completely agree, GTN is horrible, at least give us a search option BW. Pretty please with a cherry on top?!
This Actionhouse has some merit as well, put it on Ilum, a neutral cantina where both sides can go and do "Actioney" things (don't ask me what, I don't know), class it as a sanctuary (so no PvP on the premises) and allow cross faction chat, only by using the /say command though so general isn't spammed for everyone not inside.