That JD20_20 guy sounds like a TOOL
Anti-lag, rewinding the spacetime continuum? Horribly complex way of saying they try to compensate for packet delays between players.
Surely if one point of view should be correct, it ought to be that of the host? But it looks like what that guy is saying is they deliberately mess up his connection too so their in-game recording will never reflect reality. There is no reality!
Perhaps this is a good time for Professor Brian Cox
to step in and explain the physics!