So you wouldn't do it even if you get paid to do it?
What is my liability and is it worth it? I am not a gas pipe fitter, my insurance assumes I don't do gas pipe fitting. Installing this bonding conductor(s) is a task of installing certain types of gas piping and is not "electrical installations".
I have done electrical work at bulk fuel plants and seen bonding jumpers installed between fuel piping, tanks, and other equipment by the fuel guys. why is this CSST any different. They need to put in whatever is necessary to protect their equipment, I only need to install a GES for the electrical system and EGC's with my branch circuits and feeders, I am required to bond to metal piping systems, but gas piping is allowed to be bonded by "my code" by the EGC of the circuit(s) most likely to energize the piping - most cases the EGC to a furnace supplied by the piping.