A news leak is just that - one that was not supposed to happen. It doesn't come from an official source and naming sources only serves to destroy trust in the disseminator, not bolster it. I don't think blog or news site would take the decision to use them lightly.

However this leak was just part of the bigger discovery around the expansion and it's details, which was revealed through data-mining, patent applications and simple deductive insight.

Personally, I have several friends who remained skeptical until the official announcements and
they were all polite in their views. However the bulk of the vociferous posters online were not polite and clearly just wanted to reduce the credibility of the various websites. Credibility is the currency of these websites and so not only natural that they should reaffirm their accuracy after the fact.

As for a tongue in cheek comment asking for all haters and disbelievers to apologise, it seems obvious to all but those that it references, that it is a joke. Apparently the egos of the those referenced are still too sore for jokes just yet.