[mlinksva]

FamilySearch also provides hints ("research helps") with the same up and downsides. Perhaps this is a recent feature, I've only used the site since early this year.

I feel like there's an opportunity to do automated data quality assessment, and to provide some indication of that in the UI/with the data.

Overall though I'm fairly impressed with the fluidity of the UI and speed of the site, would be curious to know about their backend.