I was surprised to see Automattic release a Threads API plugin for WordPress, since they're one of the big implementers on the Fediverse. Does Flipboard do something similar?

When should third-party developers use Fediverse protocols to share with Threads audiences, and when should they use the Threads API?

So far we're only using ActivityPub to communicate with Threads but I can see how using the API could help augment things. For example, determining if a given account is verified would require using the API.