When I edit my user profile, there is a field for "Real Name." Why does this field not appear on the user profile page?
The field is optional, so it's not like it's a privacy issue (if someone doesn't want to share his real name, he doesn't have to provide it).
[One could argue that this might be a duplicate of this question, but (a) that question is over a year old and has no answer and (b) this isn't really a feature request: I don't really care whether it gets added, I just want to know what the purpose of the field is if the data is never used]