F3G
I'm sure your comment was either tongue in cheek or a troll;
"I think the gummint should ban gliders, as they don't pay fuel tax and thus don't contribute to the economy."
But in case anyone was contemplating taking your comment seriously, the fuel that goes into an aerotow is taxed and the fuel that goes into a winch launch is also taxed.
Back on topic, the suggestions for collision avoidance contained in the "Flying IMC out of CAS now dangerous" thread would also seem to be germane to this thread too.