I use ??? in RM in the name field if I do not know the surname or given name of an individual. The gedcom process strips the ??? for a surname and I get (___, Ann). Or I get (Jones, ___ ) for an unknown given name. When I download a gedcom file of my database from Ancestry, the missing information for the surname and given name fields has to be added again.
I can't even convert the ???'s to read something like "surname unknown" or "given name unknown" after the gedcom file conversion because the ???'s are now gone. All I have are blank fields for the surname field or given name field of data. Any suggestions on how to universally insert data into a blank field without having to edit thousands of individual records?