so many people say, “you don’t know what you are talking about.” I’m not quite sure how you conclude that.

Its real easy when you spout nonsense on a subject that one of us does know what we're talking about.

Which here, means for every subject you post a BS answer reply (you never answer the question), someone here, and usually many someones, see through that BS instantly.

If you'd put half as much effort into learning something -- Perl, or any related field -- as you have into trying to convince us that we are all wrong about you; by now you'd actually be able to answer some questions.