That's a pretty fragile and fault-prone method, and is extremely prone to typo squatting. I'm glad something like this isn't popular today, because it would very quickly be capitalized on by scammers, who wouldn't even have to rely on humans making typos anymore.
If it doesn't have error checking and checksums, it shouldn't be relied upon by the general public.
If it doesn't have error checking and checksums, it shouldn't be relied upon by the general public.