[alptrv]

Maybe because there are many other currencies besides bitcoin, what about ripple, litecoin, etc? Would they alter the standart every time to add one of them?

[icebraining]

If those currencies gain traction comparable to Bitcoin, why not? The standard is being changed every day anyway.

[drdaeman]

I believe they can use "web+litecoin" in the meanwhile. When they'll get enough traction, they may get their designated "top-level" scheme.

Same as with MIME types: application/vnd.org.example.foobar for anyone, application/foobar when you're famous.