It will be taken down because it's illegal for that content to be posted /at all/.
The proposed system is about who has the rights to post something, and a delay while that's figured out. However /nobody/ has the right to post cp, as it is /always/ illegal.
It is possible for something to mistakenly be identified as CP, so you're right there. I'm arguing based on your original supposition that it /is/ CP.
Also regarding
> I'm responding to this part:
>> First, I'd like users to get a reasonable amount of time to challenge any suspensions or bans before they take effect, using an internal appeals process
Nobody says it has to stay up during the appeals process, just that account suspensions and punishment have to wait. It's possible to have different takedown policies based on the level of accusation.
The proposed system is about who has the rights to post something, and a delay while that's figured out. However /nobody/ has the right to post cp, as it is /always/ illegal.
It is possible for something to mistakenly be identified as CP, so you're right there. I'm arguing based on your original supposition that it /is/ CP.
Also regarding
> I'm responding to this part:
>> First, I'd like users to get a reasonable amount of time to challenge any suspensions or bans before they take effect, using an internal appeals process
Nobody says it has to stay up during the appeals process, just that account suspensions and punishment have to wait. It's possible to have different takedown policies based on the level of accusation.