There are very good reasons for including the married names that a woman used in addition to her LNAB. Example:
Deborah Palmer married, in succession, men named Jones, Champion, Crane, and Towner (and survived all four husbands). Each marriage occurred in a different town, and since her birth family was not known (and her previous husbands might not have been known) in the places where the last 3 marriages occurred, the records for those marriages did not identify her by any name other than her previous married name. It took skillful research by two different highly regarded genealogists to piece together her entire marital history (and for all we know, it's possible that she married again at age 84, after the death of husband #4). I think it's really important to have all of her married names in the profile data fields so she can be found by searching.
Abigail Flagg, whose successive married names were Cutting, Wood, and Whitney, is another female ancestor of mine who would be elusive if we didn't record all of her married names. (But I managed to piece together Abigail's marital history without the kinds of resources that it took to assemble the life of Deborah Palmer.)