Haven't heard about it yet until now, i'll just do my usual research first then get back {feedback back}....its a new company right?..if so, i bet that's a strategy to get many people on-board ...just my $0.02.
The bid-offer spread is controlled by the NYSE and Nasdaq, it is illegal for a broker to manipulate the spread, they are required ( ha ) to give you the spread as quoted by the exchange at the time of your order. I think a company could manage to do free trades if they had a premium package. But again, I would never use my real money on an unproven company with an unproven business model.