I'm sure this feature can be added within a week by our frontend developers, it should not be a reason not to raise the account creation fee to combat the spam.
Also note that each node and witness needs to keep ALL account names in RAM, so the spam is actually costing us more RAM. It might not be extreme yet, but imagine 1 million spam names would be alot of RAM that is consumed that would not be nescessary otherwise.
EDIT: Normal users cannot create accounts so they are not hurt by this price increase. Only lifetime users, faucets and registrars can create new accounts, and they can claim 80% back using the soon-to-be-developed frontend feature or the CLI wallet, if they really need the fees back. Faucets and registrars already use the CLI Wallet I suppose.