According to the article, a ribbon can obstruct the scanner from reading the luggage tag correctly. The bag may then require manual handling, causing delays and possibly making it miss the flight.
Old baggage stickers can create similar confusion because scanners may detect outdated information. Removing previous labels and barcodes before each trip can help the bag move through the system smoothly.
Instead of loose ribbons, choose distinctive luggage, use a secure luggage strap, or add a flat identification tag. Make sure your contact details are placed securely both outside and inside the suitcase.