La escucha activa, ¿por qué es necesaria?

#iguru_soc_icon_wrap_6a06aa10351f4 a{ background: transparent; }#iguru_soc_icon_wrap_6a06aa10351f4 a:hover{ background: transparent; border-color: #7cbc61; }#iguru_soc_icon_wrap_6a06aa10351f4 a{ color: #7cbc61; }#iguru_soc_icon_wrap_6a06aa10351f4 a:hover{ color: #ffffff; }.iguru_module_social #soc_icon_6a06aa103525c1{ color: #ffffff; }.iguru_module_social #soc_icon_6a06aa103525c1:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_6a06aa103525c1{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa103525c1:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa103527a2{ color: #ffffff; }.iguru_module_social #soc_icon_6a06aa103527a2:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_6a06aa103527a2{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa103527a2:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa10352903{ color: #ffffff; }.iguru_module_social #soc_icon_6a06aa10352903:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_6a06aa10352903{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa10352903:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa10352a34{ color: #ffffff; }.iguru_module_social #soc_icon_6a06aa10352a34:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_6a06aa10352a34{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa10352a34:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa10352b65{ color: #ffffff; }.iguru_module_social #soc_icon_6a06aa10352b65:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_6a06aa10352b65{ background: rgba(124,188,97,0.01); }.iguru_module_social #soc_icon_6a06aa10352b65:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_6a06aa10352e66{ color: #ffffff; }.iguru_module_social #soc_icon_6a06aa10352e66:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_6a06aa10352e66{ background: rgba(124,188,97,0.01); }.iguru_module_social #soc_icon_6a06aa10352e66:hover{ background: rgba(255,255,255,0.01); }