There is a fair bit of misdirection there. Let's look a bit more closely at the sequence of statements.

Dominus offered his exposition in response to the "Streams.pm is slow" claim (more or less).

BrowserUK quoted a relevant line and asked a fair question.

Dominus quoted a piece of that and declined to have an opinion.

BrowserUK then quoted a different line from the first post and proffered the "hot air" remark. Note the change of context masquerading as a reply. That was sneaky.

Now you lay out a reply that you should have made much earlier in this thread that makes a substantive response to Dominus...at least through the first three points.

The last point then asks if the "hot air" remark constitutes a grevious insult. That question attempts to deflect by raising the bar. The initial insult came out of left field. You still don't do anything to make amends or even acknowledge that you gave insult. By being so obstinate (obdurate, even), you compound the insult.

You show your character clearly. It's not a pretty sight.