So samstave put it better, but essentially my argument isn't ad hominem, it's attacking the notion that YOUR secrets mean nothing to ME, which can be generalised to ANYONE's secrets mean nothing to ANYONE. Which is obviously untrue.
Yet that is the conclusion he comes to.
The other possible conclusion, as I noted, is that he has previously been unaware of Free/Open Source and Creative Commons based licenses. In which case he needs not talk on secrets but rather on licensing.