Add condition to message deletion

[Askancy]

Hi, I just installed Chatter in my Laravel 5.7 and wanted to include moderation features.
In my configuration the permissions are:

$user->role 1 -> user
$user->role 2 -> editor
$user->role 3 -> moderator
$user->role 4 -> admin

I have seen that only the message owner can modify or delete the message and if I have not seen badly, it is the function destroy in ChatterPostController.php

        $post = Models::post()->with('discussion','user')->findOrFail($id);

        if ($request->user()->id !== (int) $post->user_id && $request->user()->role === '1') {
            return redirect('/'.config('chatter.routes.home'))->with([
                'chatter_alert_type' => 'danger',
                'chatter_alert'      => trans('chatter::alert.danger.reason.destroy_post'),
            ]);
        }

        if ($post->discussion->posts()->oldest()->first()->id === $post->id || $post->user->role === '4') {
            if(config('chatter.soft_deletes')) {
                $post->discussion->posts()->delete();
                $post->discussion()->delete();
            } else {
                $post->discussion->posts()->forceDelete();
                $post->discussion()->forceDelete();
            }

            return redirect('/'.config('chatter.routes.home'))->with([
                'chatter_alert_type' => 'success',
                'chatter_alert'      => trans('chatter::alert.success.reason.destroy_post'),
            ]);
        }

But if I have messages in the topic:

ID 1
ID 1
ID 7

(And I'm ID 7)

when I delete the second ID1 message, my message (ID7) is also deleted.

Is it possible that there is no integrated moderation system in the forum system?