moving user ID Comments to --expert mode

[Robert J. Hansen]

On 2/8/11 6:27 PM, MFPA wrote:
> Does this ambiguity cause you to not consider the string "John Smith"
> to be a legitimate User ID?

Let's stop talking about 'legitimate' user IDs, because there is no
authority that can determine for all users what are or are not
'legitimate' user IDs.  Each user/group gets to determine for themselves
what it means to be a 'legitimate' user ID.  This explosion of
authorities means this line of discussion is unlikely to be fruitful.

>> As their name implies, the Key ID identifies the key,
>> and the User ID identifies the User (or keyholder).
> 
> Does it actually _imply_ that, or does that merely fit the de facto
> standard of User IDs containing real names (and usually email
> addresses)? The terms Key ID and User ID also reflect one being
> mathematically derived from the key material whereas the other is
> chosen by the user.

De facto standard.  There is no canonical authority on what a user ID
should be, or which ones are legitimate and which ones aren't.