Adding the nickname of the character's author

I notice that some of the character name tags are marked as oc: name (character author nickname)  
Is this a feature of the site? Or is it worth not supporting it?  
Example - oc:reysi (reysi)

Name of the author or franchise is added when the name of the character is common enough. In case of reysi that’s an uncommon enough name to not need a distinguishment.

@Starshade  
@Luna
 
I just aliased “oc:reysi (reysi)” to oc:reysi as I don’t think there is any other character named “Reysi”. But if the OC name is something like “Silver” or “John” then name of the owner in (brackets) is needed because there will probable be other characters named like that. Having the name of the character owner in brackets also enables searching for the character tag name when only the owner name is known. It’s rather pointless to use it like that when character name is the same as owner name.

Alright, thanks ^^