In another thread, we are discussing the preponderance of problematic merges of gene/protein items.  One of the hypotheses raised to explain the volume and nature of these merges (which are often by fairly inexperienced editors and/or people that seem to only do merges) was that they were coming from the wikidata game.  It seems to me that anything like the wikidata game that has the potential to generate a very large volume of edits - especially from new editors - ought to tag its contributions so that they can easily be tracked by the system.  It should be easy to answer the question of whether an edit came from that game (or any of what I hope to be many of its descendants).  This will make it possible to debug what could potentially be large swathes of problems and to make it straightforward to 'reward' game/other developers with information about the volume of the edits that they have enabled directly from the system (as opposed to their own tracking data).