people that say "whoohoo"

What is it about the people who are compelled to shout out stupid things during concerts?  I mean, I understand that people are happy and feel the need to express it.  I can take that.  Were having a good time, people are singing, laughing, dancing, cheering... But I mean the people who shout out something over and over, or worse, the ones who whoop and holler during quiet moments like acoustic guitar parts.

We are at the Solid Sound, which is Wilco's music festival at Mass Moca.  Tonight the temperature was in the low sixties and it started to rain, right about the time the show was supposed to start.  I guess they were hoping the rain would stop, which it didn't, but we were completely soaked by the time they started.  Despite this, everyone stayed put, waited and was in fairly good spirits.  But there was some big headed moron behind us who started with the yelling thing.  First it was kind of random "woohoos" and "yeahs", easy to ignore.  Then he needed to show his gratitude so he started saying "Thank you, Thank you for coming back".  He repeated this every time there was a pause.  At first people started snickering, then there were a few, "okay man", "we heard you" and "your welcome"'s.  But too no avail, he would not stop.

 He also called out songs, but he would get them wrong.  "Jesus, incorporated!"   Well, that got the crowd around him laughing.   Come on, were all a bunch of uber Wilco geeks.  "It's Jesus, etc., you idiot" someone replied.  I don't think he believed it, but he eventually changed his rant to "Play the Jesus song!"

Some of it, I just don't understand.  Every time Nels Cline played a guitar solo - yelling and howling.  Okay you like it, but wouldn't you like it more if you could actually hear it?  What is it really about; you listening to the music you enjoy or you making sure everyone knows that you approve?

Sometimes I think these people listened to too many live albums where the front man says, "We're recording this show for an album and if you make a lot of noise you might be on it." (Big hissing crowd sound).