[ericbarrett]

Think how many image posts and messages there are on Facebook and Messenger. Assume your Deep Learning model has 99.9% recall. It will still miss millions per day.

[phreack]

That's conceivably manageable if you're Facebook's size with tons and tons of moderators, while improving the data set.

[ericbarrett]

Which is exactly what they do! For better or worse.

[neurostimulant]

20 images per second x 8 hours a day is half million images per day per employee (quoted by gp, though its seem to be unsustainable), and Facebook has an army of content moderators so they probably manage somehow.