Real artists sign their work.
There is a story about Steve Jobs and Apple, which says that once work on the original Macintosh computer had finished, Steve Jobs asked the entire team that had worked on it to line up and to sign a small metallic plate that would be duplicated and put inside every single Macintosh computer that went out, ever. His reasoning was, ‘real artists sign their work.’
It looks like ex-Sony engineer Kazuya Sakakihara was of the same mind- he doesn’t work at Sony anymore (evidently he left some time last year), but he did work there for ten years, and he worked on bringing the PlayStation 3 and PlayStation 4 to the market. When he was working on the PlayStation 4, he ensured that his name would forever be immortalized by literally embedding it into the binary code the system uses to run.
No, seriously, if you don’t believe me, you can see it for yourself there. Of course, the code there has a typo, which may simply be because he might not have translated it to English properly (or, more likely, he was willing to mis-spell it to keep the code running properly).
Let’s see how many firmware updates, if any, will erase this from the code.