How can I deactive the replies?

I don't like it when I get every time an email report when a dude to get an answer on a post that I answered with a post from me.

Is it possible to block these? I don't like to report every time.

You most likely have instant email notifications enabled.

Go to the User Control Panel. More specifically: Settings -> General Settings -> Default Thread Subscription Mode, pick the preferred option from the dropdown menu.