Me and many other players often glitch into other players TnT, often resulting in death and an easy kill of the other team. I am quite sure that it's a Minecraft thing, but there might something you can do about it.
Also, sometimes it doesn't show the green +10 alert you recieve when you kill someone, not sure if it's intended or not.
And arrows are super derpy on the server, You charge your bow and shoot, but nothing happens apart from it stealing an arrow out of your inventory.
Invisible fire is often about too, I think it gets created when the fire is blown up with TnT, or the arrow is being derpy.
And the Axtinguisher doesn't take damage(mine might be glitched).