It's a neat idea, but the internet is not very tolerant to things that don't appear to be human traffic. That's why browsers used by web automation infrastructure are often Chromium-derived. Using a browser like this would almost certainly trigger all kinds of captcha requirements or worse.

ICIC. Indeed, our next step after completing all the JS rendering would be to pretend to be human, i.e., pass the CAPTCHA. Of course, we have to respect robots.txt."