sry i can only use "Mute Spectators" button...the other 3 i cant:Mute Player,Buddy,Player Information.I dont know if there's a difference of the first version,but this one is the true one.

u need to subscribe 

but i talked to ppl who werent subscribers and they told me they could use those buttons and they werent lying cause they told me my information.

If you want to find info(rmation) of a player, you need to click on the person's name in the lobby then the 

 and (/)

<<- *mute* button will appear. Click on either one of them.

OOPS!! :@

you need to click on [ i ] for information

and ( / ) to mute the person