Labelling is not optional any more
The decision has largely been taken out of your hands, which is the most useful thing to understand about this. TikTok integrated C2PA Content Credentials in January 2025 and applies an AI label when it finds them, whether or not you disclosed. Meta reads the same class of provenance signal across Instagram and Facebook alongside its own classifiers, and has required disclosure since May 2026. Assuming a post will slip through unlabelled is a bet against a detection system that has already labelled over a billion videos.
None of that makes generated content a problem to hide. All three platforms permit it explicitly. The rule worth internalising is simply that the label should never be a surprise to you. How Content Credentials work.