Since most BBS users in Taiwan are students who live in concentrated areas, buying clothes, food, and sundries as a group saves on delivery costs as well as-if they meet the seller's criteria-earning gifts, discounts, or frequent shopper points.
由於 BBS 的使用者，多半是具有地緣的學生族群，一起合購衣服、食物及生活日用品，不但省運費，還能湊到賣家設定的門檻，可以換贈品、獲取紅利積點或特別折扣。