Penny trader mentality! Big boy billboards don't always have stock tickers for the companies or products being promoted! Real investors would do the legwork and find it
If they put the stock ticker up there, It would race the stock to $5 by monday close, so they won't do that...they need to hold out on the meaty pr and stunts for as long as they can.... why?, they got to protect their shares , it's only right :)