Allow Google crawler to crawl specific Author pages

I would normally ask a couple clarifying questions but I don’t have the reputation to do it so let’s see if I can give you a workable solution. I don’t know what you consider to be high quality but if it is certain fields being complete, you could do an if/else statement around those fields being set. Let’s say you have fields created in the user profile area that these users fill out for job and title (and for the sake of the example, if these two fields are filled out, it is a good profile). You might access those fields by using:

$job = get_the_author_meta( 'job' );
$title = get_the_author_meta( 'title' );

if( empty( $job ) && empty( $title ) {
    $meta="<META NAME="ROBOTS" CONTENT="NOINDEX">";
    echo $meta;
}

OR you could wrap that whole thing in a function in your functions.php and then call the function in your header.

That would set it up so that if both of those fields were empty, the meta tag would be added. If either were filled out (or both), it wouldn’t be. You may need to modify the logic to fit your needs but the idea is:

1. Decide what constitutes high quality
2. Retrieve that data
3. Compose a rule to add the meta tag in if rules are not met.
4. Echo result