What proportion of people browsing this thread would you say are here for professional reasons (say, commercial pilots), or personal reasons (say, might know so

What proportion of people browsing this thread would you say are here for professional reasons (say, commercial pilots), or personal reasons (say, might know some of the passengers and / or crew)? My guess: the vast majority of people reading this thread on HN are here for entertainment. Given that, why bitch about someone hawking his wares? It's not like he crashed a funeral or something.