A friend just pointed out:

"ADHD creates impulse control issues and, consequently, advertising takes advantage of a disability.  Ergo, ad blockers are assistive devices and interfering with their operation for commercial gain constitutes a willful violation of the ADA."

Let’s do this.

@tek Sadly at a skim of the ADA, I think this doesn't fly :( The ADA's website/app stuff seems tightly scoped to governments and private entities where the website is a replacement or enhancement to a service that's provided in a physical place open to the public (e.g. online reservation for a restaurant). I don't think the main sources of ads on the web fall under that scope :(
@tek Although if you rescope to physical advertising, maybe places like airports would be in scope... Though I suspect it still wouldn't work out, in no small part because ads are massive business and would be heavily incentivized to demonstrate that ads are fine, actually :(