I'm developing a system in PHP following the MVC (Model-View-Controller) standard. I have decided to create an account exclusion page for users and display a text field so they can tell us why they are leaving the system. My question is whether to save these messages to a text file or to a database table. I also thought about creating a list with possible reasons for abandoning the system and the user would only need to select the compatible list option. However, in this alternative way, I would limit the user only to the list I created, that is, I would not know if he would be leaving the system for an unnamed reason.