Messy code is harder to debug.

Illustration of a smiling stick figure with curly hair.
person (thinking): “this function is 100 lines??? who named these variables?!?!” (annotation: it was me)

Doing a tiny bit of refactoring can make things easier, like:

• rename variables or functions
• format it with a code formatter (go fmt, black, etc.)
• add comments
• delete old/untrue comments

Don’t go overboard with the refactoring though: making too many changes can easily introduce new bugs.