1) since (by the time of the article) he didn't take the test he wasn't hired for writing C code 2) C can be written in many styles, whatever he writes should

1) since (by the time of the article) he didn't take the test he wasn't hired for writing C code 2) C can be written in many styles, whatever he writes should be an easy uptake for later developers, thus adhere to the common style I have no doubts that he can express anything in C and I assume this would be of good quality, but might take a different approach, thus makes it harder for the junior who is trained heavily in Google style and has to fix a bug or add a feature a bit later.