Fun find, the Sage's identity.
Sort of like the FAQ it never sat well with me that Customer Service's answers were kicked out. Oh don't get me wrong I can understand why. Some poster in the middle of a hot debate says his 1 in 5,000 email was answered the day of being sent supports his exact view of total bullshit? Seems legit to me. Totally. But the disregard is carried over to Sage Online, an article that indisputably happened, and I've seen it referenced that because the FAQ has been answered by "the Sage" then fallacy of association dictates both are piles of skunk manure.
Well, "The Sage" as of at least the Sage Online article's
starting point until at least 4th Edition (since he worked on the PHB) was none other than Andy Collins.
He worked on both planar books (MotP/PlH), both item books (A&E/MiC), a couple completes (CAd/CD/CW), some misc ones (Draco, MMIII, FF, FR:MoF), in fact without him who knows. We may not have had Flaws (UA), Shadowcraft Mages (RoS) or Necropolitons (LM). At the very least the guy has back ground credit for making screwed up rulebooks.
Goes to show, that nameless entity you dislike may have been the same guy you've loved all these years.