Thanks for taking it seriously, that’s what I was looking for.

I’m also not a lawyer, but I do have a disability covered by the ADA. I understand that ADHD is a recognized disability. That’s not the specifics I was looking for.

That being said, the ADA doesn’t define how to make a website accessible and that typically falls to the WCAG, which is not specifically mentioned in the ADA (though neither is ADHD, those cases you mentioned confirmed it is covered). The best things I can find than might cover the specifics of ads are maybe section 2.2.2 or 2.2.4 or 2.4.1 of the WCAG (the first and last are level A, the middle AAA, with the standard recommendation being AA.). How would you apply those (or others you think are more appropriate to ad blocking) given that the guidelines are for service providers and ad blocking is usually done client-side. Examples for 2.4.1 given by W3C just seem to specify a way to move past things like ads via a link.

Also, some interesting other things:

This mentions the following and cites the case on their site:

For example, a web-only service with no nexus to a physical place of public accommodation is not subject to the ADA under Ninth Circuit precedent.

I’m not sure if that’s changed since 2019 or not. California has more specific legislation that covers that, though.

I’m all for ad blocking and accessable websites, I just don’t think the ADA covers ad blocking through the WCAG.