So instead of doing that and being respectful and competitive Google decided to ban the extension.
Respect may not have been the right word, but I was going for "not a blatant abuse of power".
If Google decided to block users of AdNauseum and similar plugins from using Google web products, you'd probably say it's blatant abuse of power and I'd say it sounds reasonable, exactly as it's reasonable for sites to block users running ad blockers.
It's their computer after all, they can use it however they want. If click fraud is what they want to do, go for it. It's up to the ad networks to counter that on their end - on their own computers - in a fair and reasonable way.
Just as browser extension runners have every right to have their computer do what they want it to - if that's click ads, so be it.
Ultimately, I own my computer, it should do what I tell it to.
As others have pointed out, Google could have easily detected this extension and ignored its clicks, just as they do with regular click fraud in most cases. Instead they chose a path which makes Chrome violate user choice. That I have a problem with.
Yes. Context and intent matter.
"Almost nobody would think it acceptable to drive recklessly on their commute home, but somehow ambulance drivers get to run red lights and exceed the speed limit?"
I don't see a lot of merit in AdNauseum. It feels to me like a petty "fuck you" response from people who don't like ads.
Let's take another, more similar analogy: some secure messaging programs are designed to resist network analysis, which invariably involves sending some kind of "noise" to clients whom you are not actively communicating with, to mask your actual communication. Depending on your point of view, you could frame that as an "attack on your ISP" - after all, aren't you sending unnecessary junk traffic? This is the same thing, except for the web instead of messaging.
In general though, not picking on you in particular: I really see a lot of nerdfolk who don't understand that intent and context do matter. I see it particularly often in legal contexts where people think they've figured out one weird trick to escape the law. Like, I don't know, people who think that they can claim they forgot the password to an encrypted system they use on a daily basis, and the judge is just a computer who will say "oh no I am defeated, beep boop", instead of a human being who will think about whether that's reasonable and throw them in jail for contempt.
It would be wildly unreasonable to think that AdNausium is a click-farming scheme, or a DDOS attempt, or anything of the like. Context does matter.
Also, if some of your clients actually using your primary "features" (clicking your ads after they load a page) is a problem for you, it's hardly their fault. By all means feel free to discontinue serving them ads if you don't like it.
Blocking users who run AdNauseum does seem entirely appropriate to me. Blocking the plugin from Chrome also seems appropriate to me.
It doesn't download or run anything. Just clicks links without even rendering the response, pretty small attack surface there I'd say.