Creating a trading link across the galaxy not only fails to provide relevant trade bonuses, cause trading still sux, but also reveals previously hidden nodes refer to screens for details:

tradingCompanyUncoveringNodesBug.sav

^
Can confirm, we spent about 100k+ dusta and our trade route was yielding about 1k dust per turn so it would take a minimum of 80-100 turns to get back what we Invested instead of we had just spent the dust on military or other buildings that would of been a much better investment.