Actually, it didn't look insulting to me at all.
I wonder why you aren't giving pointers to the matter, as you critcise their absence. I guess not everyone instantly understand what the both of you are talking about.
I admit I don't do it either, but I know of this thread: ref($proto) - just say no!
...and I have my personal opinion on it too.

Given the opintion expressed in that paragraph is debatable, it's still just one paragraph in a good node providing a complete answer to the OP's question.

Cheerio, Sören