What defines a clown, in your opinion?
My guess, judging by posts on here, some posters define a clown as someone who behaves differently and doesn't share one's opinions and views.
In my opinion, that person is not a clown. They are simple someone who might behave differently and have different opinions and views.
Now, tarring people with the same brush, assuming they are uneducated and to call them trash or a clown without really knowing them is clownish.