Anarchism is a philosophy that embodies many diverse attitudes, tendencies and schools of thought; as such, disagreement over questions of values, ideology and tactics is common. The compatibility of capitalism, nationalism, and religion with anarchism is widely disputed.
I should have been more clear. The systems where I typically see Teflon used are water systems (either automotive or household plumbing) and pneumatic systems where the tape is used on a tapered male thread. In those cases, the male thread could be tightened without the Teflon tape, in many cases without leaks.
If you use plumber's Teflon tape on gas pipe fittings, the tape will degrade over time and gas vapors will escape from the fitting. Plumber's Teflon is white in color and thinner than yellow gas-rated Teflon tape. Leaking gas pipes and fittings are dangerous and can cause an explosion.