The scam is selling hundreds or thousands of BTC in fee shares for 0.4 BTC each that he has no intention of ever paying fees on, weeks before shutting down.
Telling everyone to withdraw their coins, making him plenty more in transaction fees, unwithdrawable dust, etc. It also gives him cover in case he ever has to talk to authorities after he disappears with the rest of the coins in his exchange. Everyone has to withdraw because he has to do his testing on the live site? Can't create another DNS record and vhost? Maybe he could use some of his millions for a dev server?
Nobody is being forced to do anything. If it was a "scam", Real Solid could just shutdown the exchange and that's it.
A scam doesn't require force of any kind. I fail to see how the fact that nobody was 'forced' to do anything exonerates RS in any way.