cyphertext
US Veteran
To each their own.
I'm the kinda guy that makes a point to clean my dryer vent line at least once a year too.
Comparing the gas tube to the dryer vent is like comparing apples to orangutans...

Unlike your dryer vent, there is nothing that is going to hang up in the gas tube and catch fire. Every once in a while you can shoot some cleaner through it... if you see it come out in the barrel, it is all good.