Jeff King [off-list ref] writes:
More or less. You would still have some lossiness when emailing your
patch. Do we want to warn about that?
Probably not.
There will only be less than hundred people with a single letter name in
the world (I was tempted to say 26 but decided to be generous ;-) like
that, and you will much more likely to see an overly short "name" part
from a misconfiguration or misparsing than from receiving a real patch
from people with such a name.
But I haven't thought the issues, possible improvements and pros-and-cons
through.