Non-exhaustive list of things that do not count:
- A comment that contains classified plans for a nuclear weapon is deleted because it's illegal. 
- Someone requests their own content to be deleted, Manifold doesn't have a way to do this, they due Manifold under GDPR or similar. 
- Manifold themselves publishes an article on their Substack, then takes it down when someone complains. 
Non-exhaustive list of things that do count:
- Someone writes a letter to Manifold threatening to sue them for libel because someone posted a market that was critical of them, or actually does sue Manifold, and Manifold takes the market down. 
- A market about someone with a history of legal threats suddenly disappears, and Manifold refuses to provide any explanation. 
I'm open to ideas on how to operationalize this better, please ask questions and make suggestions.
@JoshuaPhillipsLivingReaso That wouldn't satisfy this market unless it was taken down by Manifold because the subject complained. Even then, I'm not sure whether that should count, that's not really a free speech issue.