But it still tells me to enter my full birthday, and there's no option for displaying only the day/month...
I can second this. The options are:
~Display Age and Date of Birth (i.e. DD-MM-YYYY, AA years old)
~Hide Age and Date of Birth (i.e. Hidden, says nothing)
~Display only Age (i.e. Hidden, AA years old)
The options to just have the day and month visible, or just the year (and having the others hidden), aren't present.
They probably should be - i.e. require the fields be submitted (I know that's a non-negotiable stance for you peeps), but not have the year or age visible, or have only the year+age visible, in addition to the other options that exist.
...okay why didn't I throw this brick at Mark