Scottrade tooka simliar position on RCCH and someone reported that to the SEC adn they thought it was "interesting" see RCCH board and search for Scottrade to see explinations for what it might mean.
They do that with shady stinky-pinky stocks to protect their clients from scam companies. I am sure SPZI has been flagged since it dropped from .014-ish to .0001 in less than a year and it has been heavily diluted with no hint of revenue to speak of as of yet. Those facts alone are enough to put this stocl on the "watch list" so to speak.