[Deleted]

Hi there, as the aliases were announced in the October 2016 update there is a meaningful change happening to characters.

From hereon out (future character applications and key position) characters who use Aliases or 'nicknames' have otherwise a notation of notoriety added to them. These tags are pretty interchangeable but are very obvious in their usage. This is to stop Genin from having aliases that they frankly shouldn't have (that is, unless it's a group thing.)

These tags are [Group], [Village], [Countrie/s], [World].

They are very self explanatory: and explain how many other people might've heard of your character depending on these aliases. That of course means, that Genin unless have performed some very significant IC work wouldn't have many of these tags. They could have a village tag if they were openly spoken as a Jinchuuriki (as an example) but you get the idea. 

Can you change these tags? Of course! But they need to follow this sort of guideline.