I have just noticed that on couple communities (ELU, Money, Electronics and maybe others), the username is written in all-caps in the profile page. I would like to ask whether this is really necessary.
From what I have tried to get from Data Explorer, around 15-20% of users have a username consisting only of lowercase letters and such that it's not of form
user... so they chose it intentionally.
Therefore, please follow the capitalization of the usernames as the people indicated in the user profiles:
Complete list of sites that have this "feature" as of 18 Feb 2015: