Comment Necessity Review

Format: Check whether comments in the code are valuable.

Comments that are needed:

• Explaining "why" (reasons behind business logic)
• Explaining the approach of a complex algorithm
• Documenting temporary workarounds (why it's done this way + when to fix it)

Comments that are not needed:

• Explaining "what" (the code itself should be clear enough)
• Commented-out code (should be deleted — Git will remember)
• Stating the obvious (x = x + 1 // add 1 to x)