Trouble in the Smithsonian "date-abase"

@gambleb, good to see you here. I didn’t do an extensive analysis, I just checked date fields to see why you had so many “Recorded date invalid” flags. There are many other issues spotted by GBIF (see below) and I found additional problems with a “field disagreement” check. Have the Smithsonian collections found the GBIF issue flags useful in the past?