Halo effect is a broadly debated topic which manifests itself in various forms like brand effect, country of origin effect, etc. Nevertheless, researchers hold controversial views on the impact of such an effect on the perceptions of images. If for some authors positive influence of the halo effect exist, others sustain that it is no longer a factor contributing to high quality perceptions. None of prior researches focused on the halo effect at the membership-organization relations. This work lightens the effect of current members on the decisions of potential members to register. Outcomes are quite intriguing and guiding.