Why talk without doing RESEARCH?

I love listening to sports talk radio. I've strayed from the right wing political station with a glimpse at sports on WEEI (primarily, Dennis and Callahan's illiterate right-wing four hour rants every morning) to the much better, SPORTS focused 985thesportshub. On each of these channels, though, people will call in and chime in about sports or what they think about these athletes or pretty much whatever they want to talk about, as well as it be related to sports. What drives me crazy is when people call in and have absolutely no RESEARCH to back up their points! Granted, every form of research has it's hand in opinion too, but why is it that no one does their research to back up their points? People will call in and say, "Man, Kevinn Gahhnett has nuthin this year", to which they respond, "well, he's had a rough season, but he's still averaging this and that blah blah blah". the caller usually gets defensive, yells, and they hang up on him. I guess my point is if you're going to go on public radio, do some research on what you're talking about, at least to the degree where your point does not make you seem illiterate! I've called in a couple of times, but I always think about what I'm going to say, and make sure my facts are straight so I have a valid point/argument to discuss with them. I wish more callers would simply back up their points with research, or at the very least, a slight bit of knowledge on what their rambling about!