They can never really know that you were there and change action. Just like they can never really know all those clicks are organic clicks for their ad-spend.
Its more of a we trust its this because we don't want to look behind the curtain. Unfortunately.
True, but that's the website's problem, not mine.
I figure that everyone using Cloudflare knows that they're excluding a portion of their audience by doing so, and they've made the calculation that they're OK with that. So if I'm in the excluded group, I assume that I'm one of the people they deemed as an acceptable loss.