In a network, super administrator can choose a specific user for admin of new blog instead of guessing his email.

[novasource]

When I create a new blog in a network, I am asked to enter the Admin Email. This is rather useless to me because all our accounts come from an LDAP directory. So I have to remember the site admin's email address, which is not always consistent across my organization. It would be nicer if I had an autocomplete-style field where I could enter the user's ID.

All of those settings need better UI, but the ID vs. email for identifying users is more complex than this, I think. Have ​added issue to UI group's list of things that need some brainstorming.

Returning to feature request, as it's a bigger user-facing change than an enhancement, based on how we've defined the difference in the past.

(Making the change that jane mentioned in comment 3.)

For additional clarification, this change won't just help LDAP users. It just seems to make more sense to query users based on their root ID than on an attribute--unless you're going to allow user queries on any attribute.

It would be nicer if I had an autocomplete-style field where I could enter the user's ID.

That doesn't make any sense. You could query by the user login, sure, but not by it's ID.

Wether we query for the login or for the email, +1 on autosuggest.

@scrubu: Sorry, by ID, I was referring to what the user types into the Username field to sign in.

Related: #18160

Related: #19810