What the hell is wrong with Craigslist People

I'm just trying to buy a complete set of cheap tires and wheels. I've emailed over a 15 people and have gotten two responses. Both of which couldn't be bothered to answer the questions I asked. I use CL a lot to buy and sell, when I'm a seller I am friendly and respond to EVERYTHING. Why would I not respond on a potential sale? I'm starting to believe that over half the population of Texas are either just scum or incomprehensibly stupid.

I'm just venting, don't mind me.