I disagree with the basic premise that your note seems to be implying: it's a technical forum, so it's OK to treat people disrespectfully. That logic is used by bullies in many different contexts: It's music class, so it's OK to yell at the students. Or, "It's football, dammit. It's supposed to hurt." No context makes shoddy treatment of people OK.

As to "I'm not doing to others....", the tone of your writeup contradicts the notion that you take criticism well. "If I write stupid code, please say so", but we should not say anything about using an obnoxious tone? According to your note, it would be OK for me to put you down and insult you because I disagree with what you wrote. It would be easy, but it would still be wrong.

It's your choice how to treat people, but please don't try to justify it by saying, "It's Perl, being thoughtful of others doesn't enter the equation." When human beings interact, mutual respect is always important, regardless of the topic being discussed.