Why do you want to trade shitcoins for shitcoins by the way?
I have my share of shitcoins too but I don't see the point of trading it and spend for gas unless it's just for fun.
People trade in shitcoins purely to gain from speculation. Shitcoins carry a big risk for sure but the reward from it is equally high. Take for example all those shitcoins that masternodes online lists. Most of them are just recycled coins by the same team under different name. People keep falling for it over and over again by seeing those high ROI numbers and they think they will make same returns. In truth. It does not work like that..they lose money and then they come on bitcointalk to cry about it..