There's no such thing as "my data" or "your data" once you publish it literally becomes public domain. You can own a thought but never something published (either with your voice or fingers).
IP defenders will try to convince you with a bunch a too-complex-to-think-through filibuster, but in the end, no one can attest that a thought leading to a post was first idealized in their head. You can only ensure ownership through secrecy.