Use this forum to report a player for breaking any rule. Please include:

1. Your ingame name: JoesMine231
2. The offender's exact ingame name: JeffTheSloth
3. A description of what rule they broke/how they broke it: hacks
4. Evidence/full screenshots:

 

The person in the video is getting some major lag spikes which sometimes make you take no knockback.

It does look fishy but I won't ban the player.