Sadly I can't see the name of the hacker. This is why I try to get a good view of the players name in my videos with optifine, by zooming on them. This is hacks but you need to show the name in the video.
You can see the name of this hacker. When the video starts you can see in chat, it says you been hit by derdanielr please do not log out doing combat. Next time I will zoom in.
Thank you for the report. The reported player has been banned. This thread as been moved to Reports - Banned.
