I'm not defending the comment you replied to, but the privacy vs. performance aspect of the browser landscape seems like a reasonable tangent to me. After all, it's not far fetched that improvements like this are partly motivated and funded by the prospect of funneling users into a browser built by a company that's thirsting for your data.
I don't mind the topic on principal alone and think privacy of the tech is a natural points of conversation for plenty of hackers but only if they are substantive/thought out and not just short dismissive flaimbait to plant the controversy in every thread. These things are already in the guidelines though, no need for a new rule.
Frankly, there is not much to add. Google will continue to develop Chrome, add new features, making the JS engine faster, maybe trying to sneak in some feature that will make adblocking less efficient and so on. In the past, when we heard about good developments, we would happily hooray them. These days the situation is very different. I don't feel like arguing about it though as everybody has their opinion on it and it's unlikely to change.
I meant exactly what I wrote. The huge success of Chrome was because of its technical merits, starting with separating tab processes and then an enormous work on V8. But all these marvels weren't done for free. Fortunately, we still have a choice, and I believe this freedom of choice is very important.