Pretty sure it's because of loyalty to the old combat system. In fact several of my players have suggested I switch. Not back to 1.8 but I've seen plugins for this. I'm split. On the one hand I did find the new combat system disappointing when it came out, on the other hand, wouldn't it be easier to aura hack? The game-imposed delay is a natural deterrent. It would probably make Matrix trip, and it already does enough false positives as it is. How does all this work? Anyone running a 1.13+ server successfully with 1.8 combat?