I choose to par-phrase him, and had no idea that this would get anyone this upset and lead to me being accused of being a liar. How much of experts these people where I cannot vouch for. Maybe they were second rate language designers or maybe Kelley referred to older papers advising against it.
Either way I cannot find the exact video anywhere where he made this remark despite looking through several. Does it really matter? Can you say for a fact that no language designer expert ever told Andrew Kelley this? I am not claim this is the general opinion among designers, only that this is what Andrew got told.
If anyone has the correct quote, I'll be happy to update the article.