There's no clearer lack of consent than attempts by advertisers to circumvent, block, or ban ad-blockers.
These advertisers could choose to put up paywalls but that would harm their search rankings, so they don't. Instead, they play games with cloaking [1] and other SEO techniques in order to bypass the user's wishes and show them ads (or even ads + cloaked paywalls).
At least YouTube offers a paid premium service which remains ad-free.