The disappointment of seeing a post full of delicious math and then realizing the OP probably doesn't actually know what they're talking about and that that thing doesn't make sense is harsh :/
@DavidZ @dmckee or other mods, there is this user Lawrence B. Crowell, who has a username identical to an old user (inactive for 5 years) and discusses similar topics. Perhaps it's the same guy, and he's lost access to his account. Maybe one of you can contact him and ask? Maybe he can recover his old account (assuming he wants to)?
Oh no, I guess the Crowell that we're getting google hits on is affiliated with Evans.
Hmm... It really seems like the guy posting on PSE is legitimate at least in the sense of not obviously trying to sell any personal theories. Also being interested in strings, which crackpots usually hate.
@Danu The address "Alpha Institute of Advanced Study 10600 Cibola Lp 311 NW Albuquerque," from the arXiv papers is actually a "Seven Bar Banch" according to Google, which is...suspicious to say the least