Final answer:
Identifier names that are identical for the first 31 characters are not a good choice as they can cause confusion and errors, and hinder code readability and maintainability.
Step-by-step explanation:
Choosing identifier names in programming that are identical for the first 31 characters is not generally a good practice. This can lead to confusion and potential errors in the code, especially in languages like C where the standard requires that identifiers be unique in at least the first 31 characters for external identifiers, and the first 63 characters for internal ones. Using descriptive and meaningfully distinct identifiers helps to make the code more readable and maintainable, which is a key aspect of good programming practices.