It isn't an article, but a mailing list post, and the post starts out with:

  This is a fuzzy recollection of something I believe I read, which might well be inaccurate, and for which I can find no corroboration.  I mention it solely because it might spark memories from someone who actually knows:

Spoiler: it sparks one memory from one person, who winds up being mistaken.

Offering an alternative hypothesis seems reasonable given the content of the post.

Which article? The posted emails? Superuser audience disagree https://superuser.com/questions/784978/why-did-the-ietf-spec...

That’s such an awesome answer by Michael Hampton. I had never heard of Jon Postel before now.

Narrator: noone came up with an answer. Someone purported the origin to be Sun but it turned out they used a different address in examples.

And what did you learn from what article, actually?