This is a perfect example of the Nirvana fallacy.

Facebook, YouTube, Twitter, Instagram, etc, etc, all struggle with the issues of content moderation. The perfect example is Facebook pulling down a journalist photo of, if memory serves, a naked girl in a warzone as CP when obviously it was not.

Yup, these systems are imperfect.

But I think it's pretty silly to claim they're completely worthless or ineffective and therefore moderation simply cannot be done, and Parler is therefore off the hook.

Heck, HN has commenting rules/guidelines. Are you suggesting those shouldn't exist and any system to enforce them is pointless?

It’s not a nirvana fallacy. I’m saying moderation on Facebook is so bad that it should not pretend it’s moderating in any kind of balanced way. It just does the bare minimum to keep regulators away.