I thoroughly agree that ridiculing an individual is wrong, but the ideas held by individuals are ripe for ridicule, if they are riduculous <---- the clue is in that last word.
I do agree with Sam that we need to go gently with Newbies, a kindly but firm correction of faulty ideas is often more effective than ridicule.
I know when I first found this site,I was kindly, but firmly, told by the estimable Caedes above, that I knew nothing about Evolution. Which was so true, as a born-in JW I had been shielded from exposure to Truth in its many forms, Scientific truth particularly.
I also experienced fun being made of beliefs I held, I did not take this personally because it all seemed to be part of what this place was about, how could I view it as a personal attack, when all that was being lampooned were beliefs I held at the time? if the beliefs were true, they could take the ridicule, if not true, then they deserved it.
The problem with some wilting violet types is they equate ridicule of their beliefs with an attack upon them, it is not so, they are free to change their beliefs, so their beliefs are not actually them.
YES ! ridicule is fine, as long as it is not aimed at the person.