title: Log information is displayed though "LogLevel" Property is commented
body: <p>I am pretty new to .Net Core. And I'm working on basic logging of information by the default ILogger provider.
  Initially my <strong>AppSetting.json</strong> was uncommented and able to see the logs that I've written.</p>
  
  <pre><code>{
    "Logging": {
      "LogLevel": {
        "Default": "Debug",
        "System": "Information",
        "Microsoft": "Information"
      }
    },
    "AllowedHosts": "*"
  } 
  </code></pre>
  
  <p>Later, I commented the<code>LogLevel</code> properties and ran the application on Krestel server. Then I can still see the logged information in the console. </p>
  
  <p><strong>AppSettings.json</strong></p>
  
  <pre><code>{
    "Logging": {
      //"LogLevel": {
      //  "Default": "Debug",
      //  "System": "Information",
      //  "Microsoft": "Information"
      //}
    },
    "AllowedHosts": "*"
  }
  </code></pre>
  
  <p><strong>Program.cs</strong></p>
  
  <pre><code>public static IWebHostBuilder CreateWebHostBuilder(string[] args) =&gt;
              WebHost.CreateDefaultBuilder(args)
                  .ConfigureLogging((context, logging)
                      =&gt;
                  {
                      logging.ClearProviders();
                      logging.AddConfiguration(context.Configuration.GetSection("Logging"));
                      logging.AddConsole();
                  })
                  .UseStartup&lt;Startup&gt;();
  </code></pre>
  
  <p>Sample logging method in <strong>HomeController.cs</strong></p>
  
  <pre><code>public void LogExceptionToConsole()
          {
              _logger.LogError("This is raised by logger information");
          }
  </code></pre>
  
  <p><strong>Console</strong></p>
  
  <p><a href="https://i.stack.imgur.com/J3zQb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/J3zQb.png" alt="enter image description here"></a></p>
  
  <p>Why is this behavior? If this the behavior why it has been designed like this?
  Could anyone explain me.</p>
  
  <p>Thanks in advance</p>