I've had this plugin for like 2 years I think (possibly more), and never had any issue with this. Neither Cloudflare's nor Google's non-interactive captchas have ever labeled me as a bot, and I've never been blocked from any site.
That could be because I've been so thoroughly tracked throughout my life already that they can detect me from mouse movements/keystrokes alone, or that adnauseam's behavior isn't obviously bot-like, or that the trackers already account for it's behavior patterns and filter it out as noise.
In any case, if it has the potential to cause advertisers grief, then I'm going to continue to use it.
I've been using it for so many years that I'm not sure when I started, but I've never had issues being labeled as a bot.
What should actually be noted is that Google has rejected the plugin from their store for ages so it does seem to do some damage to adtech.
And this is probably the best argument in favor of AdNauseam.
You can still install it on Chrome, but it is a manual process instead of just downloading from the Google Store.
yeah, what the parent commenter said makes little sense. Google search certainly won't do this and not a lot of people use google as a cdn (and even if they did I doubt there is an adword/adsense integration like that). Maybe if you click like every result from a google search. Most annoying ads aren't served by the top ad providers anyways, there are a lot of ad networks and ad delivery services out there.
The #1 cause of that bot experience is vpns and proxies. I get that 3rd rate experience myself, but even then it is bad but not unusable bad.