I could feel ridiculous about certain things, like taking a dance class or voice lessons. It is feeling of how this would look to others. In a way it's rather dumb to even think this way. So in a way the fear of the ridiculous is simply a way of not trying out new things.
Yet the fear of being ridiculous could also save you from things that are in fact ridiculous. Someone comparing me in print to Jesus or Socrates would be risible, I would think. I would think of that person not as a friend or supporter, but as a cruelly misguided frenemy who wants to expose me to endless shame.
Same too for those who make the defense that queer people are supposed to be weird, so cut Ronnel some slack. If you really listen to that argument, then it would make such people virtually unhirable.