Are luggage straps actually worth using?

Across r/travel threads, including advice from posters identifying as baggage handlers, the consensus is yes for two reasons: a strap keeps a hard-shell suitcase from spilling its contents if the shell cracks, and a brightly colored strap makes a generic black bag easy to spot on the carousel. Reddit users are more skeptical of straps as a theft deterrent, the bag is still searchable, but as a 'closure insurance' accessory they're widely endorsed.