[InternetOfStuff]

If like buttons will be disallowed for privacy reasons, shouldn't the same also apply to Google captcha?

That would be a relief.

[krageon]

As much as I hate to say this, a case could be made that recaptcha provides a valuable service in exchange for this data without which the service could not work well or would be significantly degraded.

[M2Ys4U]

The legitimate interests basis would be easier to argue at least.