I don't think, it's the hive users but the tags aren't being used too much. And there is a reason behind it, lack of curation or reward (ecency.waves vote as it used to give comment rewarder). There are other platforms linked to Hive, but this is the primary reason on ecency platform. Plus, it's Christmas season so maybe, there is high possibility that the folks are busy. And, most of the short content is without tags right now.