I think people will be a little confused at first because this is a unique feature to crypto.
 A nice Step-by-Step guide on how to register a username will be great.


Also, give tips to people on how to choose a great, username. 

Example: I think having your most used internet ID would be a great choice.
Which is really easy for me, because i only have one! Surestrike.
So i recommend people to choose user names people know you by.

Really looking forward to the IONS.