[flotzam]

Google probably has a good enough handle on you to serve the easy captchas. But keep in mind that for users they can't fingerprint (e.g. with Tor Browser), reCAPTCHA is usually insanely hard or even blocked ("Your computer or network may be sending automated queries"). hCaptcha has been heavenly compared to that.

[bigbubba]

'Hard' is not quite the right word for it. reCAPTCHA frequently rejects objectively correct responses when they fail to fingerprint you.