If anyone is interested, I've used this plugin to allow users to change their names (basically, instead of displaying the username, the forum would display this extension bio information as the user name).
Code:
<?php
namespace codeart\bioext;
use Flarum\Extend;
use Flarum\User\Event\GetDisplayName;
use Illuminate\Contracts\Events\Dispatcher;
use Illuminate\Contracts\View\Factory;
return [
function(Dispatcher $events, Factory $views) {
$events->listen(GetDisplayName::class, function($user) {
return $user->user->bio;
});
}
];