I believe you are remembering wrong:

http://news.ycombinator.com/item?id=611656

http://news.ycombinator.com/item?id=607532

Not to say it is uncommon to call Stephen Wolfram egotistic, I swear there was a thread about Wolfram remembering Turing and people counting how many times Wolfram mentioned himself but it may have been killed as I can't find it.