One of the questions I get a lot is "when can I remove the unsourced template from a profile". My answer is always two-fold. (1) The unsourced template can help find sources, as others will help you look (2) Removal of the template means that you have "proof" of birth, death, marriage and family; in addition for Pre-1700 profiles, that proof is primary documentation.
That said, there is a big difference between a profile with NOTHING on it and a profile that has maybe a marriage document and the person is found in the will of their father. While the dates in the second case are not documented, other than the marriage, at least we have a good idea that the person actually existed in the time frame shown and with some of the family members shown. But, truly, the data for that person is still unsourced. Should there be a "partially sourced" category? Or is that good enough to say the profile is sourced?