How would you say "no obscure algorithm to determine your timeline, hiding posts of people who follow and showing posts of people you don't" without having to write a full paragraph each time?
I'm not claiming it's legally simple but the difference is that this new "fiction" is very hard, if not impossible to distinguish from reality. Nowadays AI can form a regular human hand.
The problem with AI generated CP is that if they're legal, it opens a new line of defense for actual CP. You would need to prove the content is not AI to convince real abusers. This is why it can't be made legal, it needs to be prosecuted like real CP to be sure to convict actual abusers.
Not irreversibly, but it's annoying to be forced to spend an hour searching for an answer in forums then fixing to get networking or GUI back before you can do productive work.
No need to secure a handle, you can use a domain name you own as your handle.