Today I got this email from ArtOfCode, a [Hardware Recommendations](http://hardwarerecs.stackexchange.com) moderator, after he changed my username on HR from "Mͣͭͣ̾ Vͣͥͭ͛ͤͮͥͨͥͧ̾" to "user924":

> Hello,
> 
> I'm writing in reference to your Hardware Recommendations Stack
> Exchange account:
> 
> https://hardwarerecs.stackexchange.com/users/924/user924
> 
> I've just removed your username and set it back to its default value,
> "user924". I've done this because your previous username made
> extensive use of "Zalgo" text, which is disallowed in usernames.
> 
> Please feel free to change your username back to something of your
> liking, bearing in mind this prohibition.
> 
> Regards,  
> ArtOfCode  
> Hardware Recommendations Stack Exchange moderator

And then he went on changing my usernames on **every single** community I have an account on! (Changed from "Matas Vaitkevicius" to "user924")

**Why are moderators allowed to change usernames across all communities?** 

Btw, I would appreciate if someone would revert my username to the way it was before on non-HR communities (I am fine with user924 on HR).