If you think you're failing the captchas because you're doing them wrong, think again. Google captcha intentionally fails you a couple times if they don't have enough tracking info to determine that you're legit. So you solve the captcha correctly but are still lied to that "you've failed to solve the captcha, try again".
That and the "fading images slowly to pretend like you have bad internet" thing. Disgusting behaviour
They don't. They load the images and then have js to fade them slooooowly. It's pernicious precisely because of that: its purpose is to annoy humans while being completely useless to thwart bots.
I kinda don't understand why we still have captchas. We've solved the asymmetric problem with proof-of-work; just make somebody solve something trivial so they spend more resources than you do.
Like if a bot requests your page 1/day its not a problem; but if they want to request it 1/ms then the proof-of-work becomes too much for them and its transparent to a person.
It might be an incentive to make people stay logged into their accounts. This wouldn't be hole reason but I am sure it's part of it. I used another laptop with a VPN for a few days and what used to be smooth experiences turned into a shit ton of "log in to prove you're not a robot". Both Reddit and Youtube did this.
That and the "fading images slowly to pretend like you have bad internet" thing. Disgusting behaviour