All of us started out as clueless n00bs. So, having been there, ourselves, we try to only bash people after evidence which is both ample, and long term enough to show a complete inability to obtain a clue.
Even then, we try not to be rude, and politely bash, as best we can. From the (politely, or nearly politely) written words no one can hear the moaning, groaning, whining, and complaining. They must use their imaginations.