I think Bitcoin can be regarded as a digital commodity like eBook or MP3. If they try to force bitcoin sellers to have KYC from buyers, then these e sellers should also come under the same periphery.
NO. Sellers can be without KYC, because their coins are taken in escrow and are always fungible.
However buyers can use stolen accounts, in which case the transfer is reversed and police gets the seller in hot water.
So, risk is totally on sellers side atm - only escrow or bank acct verification can change this.
Normally scammers dont control accounts over a long time, so a verification paypal-style (transfers of small amounts) would stop most scams.