Hello, if i mute someone, and say something in the chat, will he be able to see it?
??
??
yes
There is not a 'deafen' option.
then why to mute him in the first place ?
It is for you to be able to ignore him, not for you to be able to talk smack about someone without them knowing about it.
to be ignorant and drown them out, talk tash without them being able to talk trash back. 
then why to mute him in the first place ?
Mute is so you don't see their text. Hence muting a person
then why to mute him in the first place ?
So you can't see what they say.... ? The fuck kinda question is that lol. What you getting at? You wanna talk shit about people without them seeing it ya puss? What's the deal?