I gotta add on. I'd like to say I wear tight jeans, but not full on skin tight. That's what I ride street and jumps with all the time. I also rock my saddle pretty low... Today I threw on a pair of baggy jeans and went out for a ride. All okay until I had to readjust on my saddle after a jump and felt my pants getting sucked into the tire. All of a sudden I felt my bare ass burning against 1000s of micro knobs. Besides that it scared the **** out of me, all was okay. Just a little sore. Tight pants definitely do serve a purpose. Just for me, it's to save my ass.
Wear a belt pussy.
Seriously, why did this get dug back out of the grave? Just so you can give us one anecdote?