Cuel is totally correct this was sorely missed in Darkfall and NEEDS to be added to Xsyon, for pretty much the exact same reason, along with a million other scenarios when it would be either helpful or vital.

I am also fairly sure that Jooky will implement this some time in the future.

However the problem is that if you allow players to turn it off it can completely defeat the purpose of the system. A player may be rapidly typing to his atttacker thinking the player can see the text above his head while the attacker may have it turned off and thus we are left with a very similar problem as we began with.

A much better idea would be to just make the text only show over a very small radius, make it look good ie immersive as possible and non intrusive.