I turned it off for 3 days and the difference was very noticeable.
No spending 2-3 minutes switching between servers to make a website work, no captchas before reading, no false "connection timed out" or "server blocked" notices.
Is everyone having the same experience, or am I doing something wrong?
*Oh but to add, any ads which slipped through unlock ended up being obviously better targeted, which I was repulsed by :)
*Edit: it looks like turning off Firefox's own DNS resolver managed to subside many of the captcha request, including for apps which are just browser overlays. Thanks @hansolo@lemmy.today :)