You realize I already did that, ("I think I have been googeling for a bind for the "target chat" command for an hour or so") but without success, I would never have found this page googeling for "tremulous target chat bind".
But succesfully, I created a thread where this "tremulous target chat bind" occurs, so by adding this to the pool, I ensured that people looking for it in the future will find it, as everybody with some last remaining brain cells will figure out by means of thinking or simply reading my initial post.
Did I make myself clear?