In the example discussed on the other topic, the “old” sensu lato Anemone genus ID is of an inactive taxon, so even if someone has opted out of taxon changes, their old ID won’t count toward the community identification process. It has to be updated to the new sensu stricto Anemone ID to “count”.
I think there’s something here in this feature request though, maybe it could be addressed if/when branch disagreements are revised.
https://www.inaturalist.org/blog/25514-clarifying-ancestor-disagreements
https://forum.inaturalist.org/t/change-wording-used-by-the-system-when-downgrading-an-observation-to-an-higher-level-taxa/3862/119