since it doesn’t specify, i would assume it doesn’t matter whether the identifications are for yourself or for others. but if you’re not able to apply, then you could just try adding some more identifications for others that folks are likely to agree with. right now, you have 20 improving identifications in the last month, including 3 for others.
EDIT: i checked the code, and the identification requirement actually is for others. so you’ll need to make some more identifications for others before you’ll be able to apply.