While I appreciate the original sarcasm, I don't appreciate this: sarcasm is almost by definition hard to tell apart from real opinion because you are taking the position of someone who'd have such an opinion.

Since I consider the opinion of open source developers being idiots unlikely and silly, I am reading your message in a "consider best possible interpretation" way, which is that it's an ironic joke.

I would imagine that's what most people who've upvoted you thought as well.

Basically, if you resort to sarcasm, your "amusing" dilemmas should have obvious answers or you are misapplying it or using it in the wrong context (unless you are really aiming for just being an odd man out in a particular group, also known as a "troll" :).