Luckily Geni is a database and with the ability to select the view and create (Bjorn, hopefully something you're working on?) traditional pedigree display reports.
Geni has said they will add a "birth name" field to the database. I have tried to point out that birth name is NOT the same as maiden name in English.
I need to point out for hopefully the last time that the laws and customs in the United States (and indeed other countries) is for a woman to assume her husband's last name as hers at marriage event. Therefore the correct assumption in American genealogy is that her surname is her husband's.
The convention I've decided to use for my 400 years of American ancestry is this:
for a woman:
Maiden name (father's surname)
(Birth name to come for my immigrant ancestors)
Last name is name at death (usually verified and documented by Social Security Death Index name or tombstone)
Relabeling maiden name to birth name will not work for my ancestors. Creating a new field will.
I meet the laws and customs here of the US with this convention. I do not violate any genealogical principle as we all can select our individual views. There do not as yet exist in Geni pedigree reports so I guess it is not yet a genealogy program, correct. The rules for databasing however imply that fields are filled out as labeled, not worked around.
I invite those from all countries to please list out and validate if necessary the laws and customs for their countries and get them going on the Wiki by historical period. This is my proposal for Americans and I trust it will be respected, as I respect the information provided by others.