Yeah, violating TOS or EULA unlawful? Unbelievable bs. Imagine a world where users become criminals for routine and innocuous activities because of shifting TOS that no one reads and is intentionally impenetrable and user hostile.
Sad truth, this is not a new idea. Glad folks are looking out for this and setting precedent against that nonsense. (PDF warning, but a good read)
Plus adblocking should be basic security posture these days. Does no one remember pop up ads delivering spy/malware? Still happening today, why should I allow a site to display ads that are intended to cause harm to my person and property. Does the ad service or site using it have no responsibility to safeguard their users against these threats when removing their ability to defend themselves?