Not really. We’ve had forums that literally allow you to post to them without even signing up with an account. Without being a “user” at all. This isn’t about “checking” anyone, it’s simply about limiting its ability to be used as a troll tool below the point at which it becomes too tedious to bother. At that point you have eliminated 99% of it.

This CSAM poster is 1 single person among hundreds of thousands. Making it too tedious to perform eliminates them along with the problem entirely.