While Jim Krenz was supposed to become some sort of associate editor for Erika Larsen, the extent of his participation in Genii was to retype all the names and addresses of the subscribers from typed cards into a database.
He lives, or lived (?) a block or two from the Magic Castle. I was told that he felt he should have been given a free membership since he worked for Genii and, when that didn't happen, he became rather bitter.
Last I heard he was no longer involved in magic at all.