Oh, no, they make me chuckle! I don't think anyone is supposed to actually believe them, are they? More of an ironic self-observation of the vanity that stalks some corners of cycling. Mind you, I have (quite seriously without a hint of irony) been publicly chastised on group road rides for breaking rules #32, 34, 45, 60 and I scraped through on 31 by using a sawn-off bidon for my tools, but was told that though this might appear acceptable, caused me to breach 4, and potentially 26. The same guy, on seeing me break #59, told me I was "creating a corridor of uncertainty"! The very fact that this guy exists makes these 'rules' even more amusing to me.
#77 is actually a good rule.
The SSG (Slough Splinter Group, as I have just christened those of us in the "Hello from Slough" thread), are regularly in breach of #56, with our beverages of choice ranging from cappuccino, through caffè latte to the indulgent 'flat white' (You know who you are @Norm). None of us have ever knowingly consumed an espresso macchiato whilst wearing Lycra.