Wow...I really didn't mean it this way at all, but now that you point it out, I can see what you mean.

What I meant was that I feel the same way about some of the issues he raised, and I think that there are lots of large-scale improvements that could be made on the web, but the scope of the problem makes it overwhelming to deal with.

The "where to start" piece in particular sounds bad, but I just meant that I wasn't sure how to articulate the problems I see with his solution. I get that it doesn't come off that way, especially now that I read it. Apologies to the author.

I didn't mean to belittle his effort in the least. It's a noble task to try and effect change in such a large domain because you believe in it.

No need to apology, I did read that premise the way you explained it right now -- might have been naive now that I think about it. ;-)

now it's offending because people say "sigh"?

What do you mean now? That's always been insulting, even in person.

He/She spent 15 minutes to explain his thoughts. How's that insulting?

If he used that word alone then probably you could assume it's insulting.

It doesn't matter how well he explained himself, sighing is equivalent to rolling your eyes, it's the tone it sets that is taken badly. I actually agree with everything he said, I'm just pointing out that sighing is offensive; he basically said "you're ignorant, and let me explain why". The quality of the explanation makes little difference.