I noticed today that when you click on a profile, it uses whatever was input into the 'name' field, and does not show the username anywhere. This is also opposite of what the tooltips on the edit details page of a profile say.
The real name also shows up at the bottom of the forum in the active user list.
Ninja Edit: also appears to be using it as the name who posts. As evidenced by my name currently.
That's fine, but then the edit profile page should be updated to be accurate. Right now, that field asks for full real name and says that it will not be shown, when the actual purpose of the field seems to be public name. Similarly, but not really a problem, the username states that it is visible on profile, but it is not, so it is more of a login id than what would generally be considered a username on nearly every other site.
Basically, the issue boils down to the profile asking explicitly for a real name (I had originally assumed for verifying donations), stating that that information will not be public, and then making that information public.