A Friendly Message About Username Changes · 7:39pm Dec 16th, 2015
Some people not might be aware of this, but when you change your username on the site, it also changes the url of your profile.
The reason why this matters when it comes to promotions is, if someone has promoted your story, art piece, or other creative piece linking to your profile, and you change your username, the link will be broken and people can't find your content.