Disadvantages: exclusive, non-members can not enter, there is a threshold for entry. When people's consumption concept has not changed in a large area, it will lead to a small customer base; It hinders the scale of offline stores and hinders the development of their online business;

Benefits: member users have no preferential activities for non-member users, which increases the consumption willingness of member users and attracts member users to spend; Member preferential activities will also attract non-member users to become member users, thus expanding the membership group; User-recognized membership rights will increase customer stickiness; Membership system can help them transfer offline customers to online more conveniently, thus effectively reducing the marketing expenses of shopping malls; Doing online btc business has a membership base; Better promote their own products.

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