Can you specifically hide users in chat on Twitch?

The question is above.

Guess if you have the person blocks? And no LogMy hamachi has nothing to do with it

Thanks for the answer! How can you block people?

PS: It worked!

If you click on the name of the person, you can ban the user. He can still watch but can no longer use the chat. You have the option to block this person for a certain period of time or forever until you manually remove it in the settings of twitch.

Very helpful!