You seem to be a great customer and fan. I'm sure that you are
good for Orlando Jai Alai.
I believe however that sometimes you can't decifer lame effort from non-lame effort. And for a player busting his ass or in pain, the last thing they want to hear from you or anyone else is that they aren't giving an effort.
Don't think you are being singled out. There are many fans who yell stupid and sometimes very degrading stuff. The players take it and they will continue to take it. When the crowds were consistently in the thousands every night, its naive to think that the players didn't get verbally abused each performance.