[gamblor956]

Yes, now that they got caught they've started doing this stuff. They weren't before, such was the whole point of the (first) NYT article.

[tomwill656]

They were using photoDNA and Youtube CSAI Match before the article. This is the same as what Reddit uses. I see it mentioned here back in March https://www.reuters.com/article/idUSKBN21D3E9