[AlecSchueler]

How do you know what you can whitelist without looking at it?

[boxedemp]

Deny by default, allowlist per account. That's what lemmy.ca is doing, you have to apply for an account.

This is speculation; they may look at ips and other fingerprint data to determine if they accept your acc application.

[cyberge99]

Only allow trusted people to upload your content.

[AlecSchueler]

But how do you know who you can trust?

[tetris11]

A cursory look through someone's post history.

If a 6-day old account making highly voted posts and no comments? Bot, part of a botnet (check who upvoted, and purge as neccesary).

6 month old account, combination of high and low effort comments? Does not emit hatred with every fibre of their being? Appears to understand debate? Rational human, trust.

You do it on case-by-case basis and slowly increase your trust network

[AlecSchueler]

> A cursory look through someone's post history

Thus reopening yourself to the trauma of viewing CSAM.