It's probably just apathy. Trading in Disco is a tedious affair and more often than not, so is being pirated. Put two unfun things together and the result is akin to a math test in mid summer.
The best way to get a response is to up your own game, bring a little more effort into your RP and don't be afraid to haggle over the price of your demand. It may not work on everyone you meet but you may get a few lucky hits and actually have some fun, just don't fall into the mentality that traders are cashcows there is someone else on the other side of that screen trying to relax and enjoy themselves. That works vice versa too.
