Why during the battle arena, all targets appear as "mobster"?

When I started participating in the battle arena, I could see your nicknames or real names, now I only see all participants as "mobster"

Why this is happening?

 

it was to go against team up on arena, but they removed search also , so i see this useless and awful. i dislike it, not fun for me.

 

I luv the no names,and it has been in effect for the last few arena's surprised ya never noticed or read about it, lol

 

Is verry good like that , no more gang attacks , only at the end