> sometimes it will accept all [...] cookie categories
That's a shame, I like the idea of explicitly indicating that I don't want anything more than what's necessary (or at least not indicating that I don't care about them).
From a technical perspective, if you actually care about cookies, then blame your client for not maintaining your privacy, because that is where your real complaint is.. Not with the site.
The client has a hard time telling useful and tracking cookies apart. The popups do a good job at this, since they don't affect cookies that provide actual functionality. I just don't like having to navigate them.