If they don't know who Matz is, are they likely to know who Yukihiro Matsumoto is?

EDIT: Interesting fact: I believe this is now my most downvoted comment in five years on HN, at effectively -7. Never would have guessed. I'm not exactly sure what it says, but I thought it was an interesting data point.

No, but the sentence as a whole does explain who he is:

"Yukihiro Matsumoto, creator of Ruby"

Probably not, but the epithet `creator of Ruby` gives more context.

I, for one, remember the full name but not "Matz"

That's where I am, I didn't realize it until I got down to the copyright.

same here

I agree with you chc. I've been using ruby for 3 years and would not have been able to retrieve first name from memory!