A Simple Forum Software built on CI4

Small question
This model is created instance of UserModel()
https://github.com/lonnieezell/simple-fo...el.php#L98
and here
https://github.com/lonnieezell/simple-fo...es.php#L43

I do not criticize. I just want to understand. It is because of the fact that they are used with a different way.

Thank you, sorry for my english