Every account can control their public profile. This controls how they appear throughout Kanka.
Here is a quick run down of the various fields and what they do.
Name: your account name, displayed everywhere.
Profile name: fill this out if for example you want your name on your public profile and the marketplace to appear differently than in campaigns.
Bio: This short text appears on your public profile page.
Last login sharing: turned off by default, this allows others to see when you last logged in to Kanka in a campaign’s members page.
Subscription hiding: an option to hide your name from the hall of fame.
Profile picture: yo face.