See this search and note all the observations listed that don’t have any faves:
https://www.inaturalist.org/observations?order_by=votes&place_id=6883&quality_grade=casual&subview=table&verifiable=any
For some reason, votes in “Based on the evidence, can the Community Taxon still be confirmed or improved?” are being counted as faves.
Using the “popular” filter does not have the same issue:
https://www.inaturalist.org/observations?place_id=6883&popular&quality_grade=casual&subview=table&verifiable=any