Larry, I noted the e-mail you got from greg s. I really think it is a mistake to ban him. Hre is a very rational and helpful contributor to i-hub. I would highly recommend that those of us who appreciated greg's posts approach Matt to rescind his banning decision. I am sure it must had something to do with wavoids, but the whole community should not be penalized because of zealots of the wavoid kind, all IMTO.
I have already sent a personal note to Matt myself, and if enough of us do the same, I am sure that greg will be reinstated.
In edit, and while posting this, Matt replied and greg s(after a "cooling period"?) will be back.