There’s a link to the SDMB in Caruso’s article but it’s dead. After a little research I’m pretty sure that what happened was Cecil wrote this article on March 25, 1999 about the origin of “abracadabra,” “hocus-pocus,” and “presto”. He listed three possible origins of “abracadabra”, none of them Aramaic.
Then in this SDMB thread soon after, a user (apparently the user attributions are lost in this very old thread; all posts are attributed to “system”, but the post is signed “Chaim Mattis Keller”) said that they had heard a different origin, from “abra ke-dabra” in Hebrew meaning “I will create as I speak”. Then another user (post signed “Akiva Miller”) broadly agreed with that derivation but said it was from Aramaic, not Hebrew. This is probably what Caruso claims is the first appearance of the Aramaic story on the Web.
A user (again Miller, I think) then claimed that the Aramaic derivation comes from Rabbi Lawrence Kushner, but Caruso says that the attribution is mistaken and that Kushner “wrote no such thing”, which is odd because Miller gave the exact book and page number where Kushner supposedly wrote this (The Book of Words, p.11). Frustratingly, neither Amazon nor Google Books seems to have an image of the page in question.