La escucha activa, ¿por qué es necesaria?

#iguru_soc_icon_wrap_62bc515edcc2c a{ background: transparent; }#iguru_soc_icon_wrap_62bc515edcc2c a:hover{ background: transparent; border-color: #7cbc61; }#iguru_soc_icon_wrap_62bc515edcc2c a{ color: #7cbc61; }#iguru_soc_icon_wrap_62bc515edcc2c a:hover{ color: #ffffff; }.iguru_module_social #soc_icon_62bc515edcc5b1{ color: #ffffff; }.iguru_module_social #soc_icon_62bc515edcc5b1:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_62bc515edcc5b1{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62bc515edcc5b1:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62bc515edcc712{ color: #ffffff; }.iguru_module_social #soc_icon_62bc515edcc712:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_62bc515edcc712{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62bc515edcc712:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62bc515edcc7e3{ color: #ffffff; }.iguru_module_social #soc_icon_62bc515edcc7e3:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_62bc515edcc7e3{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62bc515edcc7e3:hover{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62bc515edcc894{ color: #ffffff; }.iguru_module_social #soc_icon_62bc515edcc894:hover{ color: #7cbc61; }.iguru_module_social #soc_icon_62bc515edcc894{ background: rgba(255,255,255,0.01); }.iguru_module_social #soc_icon_62bc515edcc894:hover{ background: rgba(255,255,255,0.01); }