And look, some of them do end up changing the world.
So, if you as a founder have the desire to reshape the world in the way you want it, then you should not try because the probability of success is low? That doesn't make sense.
Is the goal to have people lower their expectations? Ok, that's at least a psycho-social argument for contentment, but are they preaching that people should embrace mindfulness?
Generally DHH and Fried like to antagonize the idea of moonshot startups with audacious plans and goals stated as such. Sure, some of them are silly and over the top and worth a bit of ribbing, however it's been years now and (having been on the receiving end of one of their rants) it seems entirely unfocused with no prescription for WHO exactly should be trying to do moonshots that actually do "change the world." After all they admit that it is possible to do, so why should people not try?
Make no mistake, they are trying to influence people - like we all are - by writing these posts. What's the purpose of them if none of it matters?