>>11929991Hydrogen sulfide, the main gas that makes farts smell bad, smells bad for a reason. Hydrogen sulfide, in large quantities, is a deadly gas and is therefore an evolutionary adaptation to avoid such smells by being revolted by them. If you enjoy the smell, it means you are likely dysgenic; an r-type strategist with a high mutational load built for an unstable environment i.e. a live fast-die young survival strategy. Normal people find the smell of hydrogen sulfide and therefore farts repulsive in order to avoid potentially unhealthy mates, hence increasing the likelihood of passing on your genes.