How is it exploitative to give something away for free? Imagine if everyone using MongoDB had to pay for it, you know, like most things in the world? I sugges

How is it exploitative to give something away for free? Imagine if everyone using MongoDB had to pay for it, you know, like most things in the world? I suggest they are giving away their cake and picking up a few crumbs after the fact. Builders don't typically give away homes to sell a few cabinets.