Many people will set Wikidata, FindAGrave, and Profile Completeness to False because they don't understand them, don't want to be bothered by them, or don't know how to change them.
I have corrected plenty of Find A Grave for merged or non matching Find A Grave suggestions set to False.
No matter how clear information is in Suggestion pages, too many people would not see changes because they don't look at them because they 'think' they are doing it correctly with the False suggestions.
The 965 and 966 suggestions for bad links has many of our Projects swamped with time to correct those profiles. Some of those are being set to False with a note in Bio that link is bad, but being left in bio in case someone can find a good link for it.