The edit profile link on the sticker album page appears to be pulling our actual names, or what we have listed for them, for the url it uses instead of our usernames.

If I click it right now, here's what it uses as the url to follow: https://subeta.net/profile.php?act=edit&usern=Vicki

I do indeed have Vicki listed on my profile as my name, but its never been my username.