That’s the point. You can’t be identified. You will be stopped or harassed until you comply and be willing to be identified.

Welcome to the brave new internet.

I'm convinced many of them fail you on purpose so they do multiples of them. Increasing the amount of training per user.

My favorites are the ones i used to get on dread, jesus christ i've never sworn so much trying to do something so simple, it was ridiculous.

I had the same problem. The image ones are ridiculous, so I started using the audio option. I've rarely had to try again on those and it's usually only typing three words.

It's actually machine-learning mechanism from google. They basically use all people on the internet to educate their systems about recognising stuff in the picture.

I've been having the same problem even on my home IP. It only happens when I'm using Firefox though. If I use Chrome, and oddly enough change my IP by routing through my rented VPS and pass a few captchas then Google will eventually start to trust Firefox from my home IP. It's bizarre and Google is really starting to piss me off because I'm wasting so much time on this shit.

These days I'm getting increasingly difficult puzzles.