[GordonS]

And they collect and process this data even if you're a member of the EU - surely this is against the GDPR? I realise the photos they have are publicly available, but that only means I've consented for them to be displayed on Github, Facebook or wherever - it doesn't mean I've consented for some scummy startup to hoover up all my data, process it and index it.

And you have to send them a clear photo of yourself to opt-out... there is something very wrong with that. I don't believe for one second that they don't have, for example, my email address.