What I read from that thread is that you do not have to worry about stealing your idea from pcb perspective.

And I never cared about that. Maybe because I use most of the cases, MCU on board and no one knows which one or what firmware does it have.

As noted others on the thread you can just print the names and NOT the values of components on the board.

In any case who does care for my 10, 50 or even 100 pcs? And if someone manages to do what I do cheaper, then I will resale theirs and have more profit!

Ioannis