AdNauseam is silently clicking ads. This directly costs Google money. Google happens to control the extension web store for their own browser. Removing it from the store really isn't that bad. Uninstalling it from existing browsers as malware? A little more malicious, but I would still consider it self defense.
There is even a method to install it directly[1] which AFAIK Google has not blocked.
Granted, if Google were not both running the browser and the ad network, these actions probably wouldn't have been taken. But the whole attitude that this is some sort of tyrannical thing is a little over the top.
1. https://github.com/dhowe/AdNauseam/wiki/Install-AdNauseam-on...
I agree that Google should probably remove browser extensions that are convincingly designed to facilitate actual fraud. I'd also be on board with Google removing a browser extension that was designed by a site operator to produce artificial clicks on ads on that particular site, since now there's someone involved who probably signed a thing saying they won't produce artificial clicks.
But my point with my examples was that you can harm someone's bottom line without it being fraud or otherwise illegal, so it doesn't just follow that if you harm someone's business, you're doing the equivalent of a DoS or smashing up their merchandise.
Blocking an ad/tracker is being "not particularly cooperative", and fulfils the goal of not seeing ads or being tracked pretty well. The entire point of modifying an existing ad blocker to click everything, as stated by the creators is to disrupt the metrics to the point where the system doesn't continue to work as intended, and cost the indiscriminately clicked ad-purchasers an average of $1.58 per wasted PPC click, as they've taken the effort to estimate (see their FAQ).
I can't see how anyone can honestly argue that a tool whose creators openly state that its purpose is to indiscriminately "obstruct" and "resist" an industry to force it to change its business model by rendering its analytics worthless and wasting PPCers budgets isn't sabotage, irrespective of whether they agree with the desirability of the end goal.
But here, they are wasting their money because they decided that they'd pay some amount per click. That doesn't somehow confer a legal or moral obligation on me, some random third party, to behave in such a way that this is actually a good deal for them.
That whatever they measure when my browser follows an ad corresponds to some amount of human attention is a gamble they're making, and in no way comparable to the expectation that in civilized society, someone doesn't walk into your store and smashes your merchandise without being punished for it.
Next we're going to go around and fine people for leaving their TVs running without paying attention to the commercials...
That's why the relevant criterion here is is this software written for the express purpose of fucking up their shit?, to which the answer is obviously, yes and they've said as much, and acknowledged that if you just don't want to be tracked you're better off with a proper adblocker anyway.
If you want to leave your TV running without paying attention to the commercials, regular adblockers exist and are amongst the Google Web Store's most-downloaded apps.