I did try to modulate the harshness of "Come on, dude" with the rest of my comment. Like I said, sometimes we let our guard down. So it's understandable if you got fooled.
In hindsight there are more red flags in just that screenshot ("More by Develop App", obviously fake reviews to point out just two), but God knows I've clicked through installs for shit apps on iOS many times.
I still can't believe myself I fell for this, as said I have 2FA on all accounts and I'm normally very cautious. I guess it's a combination of all the factors here at play: Facebook allowing a fake TikTok Ads advertiser, the ad looking very legit (referring to an existing ad credit program), Google allowing a fake TikTok Ads app with fake reviews, and not getting any notifications until the amount was charged from my PayPal account.
I think it's worth pointing out that the difficulty / impossibility of achieving that bar (at least in the general case) is one of, if not the central tenet of Christianity, ostensibly the dominant religion of the West for something like 1500 years. Regardless of one's metaphysical beliefs, it's worth remembering that arguments for the necessity of grace and slack in positive interactions have a long historical precedent, and I find we ignore them at our peril.