I think a good idea to add would be a new Network command, in which it shows from how far the enemy has hit you from, it would only log from 2.8 to 10 blocks range (So your chat won't get spammed by "Player has hit you from 1,24 blocks). It can be toggled by typing a command, and it would work in playerservers and network games (warzone, tntwars etc.). That way you can see if people are cheating or using any slight reach modifications. I always get skeptical about anyone who manages to hit me first while I'm running towards them, and then they get a combo. Which that happens very often with some players.
That way you can see if said person is cheating or not.
I don't know if this is possible, but we'll see.