[Heretic]

Well, there was actually a technology trade betwen the klingons and the romulans. The klingons delivered their bird of prey shipclass to the roms and they traded their cloaking devices in. So i do not know if we shall cancel it.
SHip trade is from my point of view okay. If you pay another race for something( even tech) in ships well, why not. If the trader is dumb enough to install too much hightech, well, eeeeeeeeep!