An overall array of such loops may be used to give a "shaggy" look to the fabric and/or make it warmer, e.g., tufting the inside of mittens. After they're made, the loops may be cut or left intact; two adjacent loops tied together in a bow-knot is an attractive pattern as well.
A variety of these loops can be employed to achieve a "messy" effect on the fabric or enhance warmth, such as by tufting the interior of mittens. Once created, the loops may be removed or left; tying two adjacent loops into a bow-knot creates an appealing pattern.