Said bypass would exist for maybe a day max before getting nuked from orbit by Google. If anything, there was a non-zero chance OP would've gotten paid and he took it. I don't blame him.
I don't agree with this conclusion. Google is fully responsible for MV3 and its' restrictions. There's no reason to shift blame away from them.
Let's do a thought experiment: if OP hasn't reported it, what do you think would happen then? Even if different ad blockers would find it later and use it, Google would have still removed this. Maybe they'd even remove extensions that have (ab)used it from Chrome Web Store.
Perhaps a hobbyist would code “MV2-capable” MV3 adblocker for the fun of it, forking UBO or something, as a proof-of-concept. How much time would anyone spend on its development and who would install it when the max runway’s a few days, weeks, or months?
Google isn't any less responsible just because somebody else also did something bad. Blame is not a zero-sum game
If we think your line of argument to the logical extreme, then being upset at at somebody who ratted out a Jewish hideout to Nazis would shift blame away from Hitler. That's obviously absurd. Both are bad people, and one being bad doesn't make the other less bad. And if one enables the other being more bad then that makes both of them worse, it doesn't magically shift blame from one to the other
Really? You think Google is that dumb? As soon as any ad blocker that people actually use implements it, it'll be patched. It's not something you can exploit once and benefit from it forever.
Sometimes you get $0, sometimes you get more. I would like to mention this stuff on my college applications, and even if I tried to gatekeep it, it'd eventually be patched. Not sure what your argument is here.
Are you guys honestly arguing like the zero day industry would, for a vector that couldn’t be used by any ad blocking extension since Google has them under an electron microscope 24/7? To pick on a very young, enthusiastic programmer? What the hell??