A couple of duplicates have snuck through recently where an existing donor has given via a webform and given both their and their spouse's first names e.g "Pauline and Norman" entered as first name. Despite a partial match on the first name, and matches with surname and address, NXT has not flagged these as potential dupes - I assume that the duplicate detection score was not high enough.

Making the presence of 'and' in first name field raise the duplicate score could help flag existing donors who have entered two people's names into a webform.