What creates an antinatalist? What would turn otherwise ordinary folk going about their day into evil pessimistic cretins, knitting the fabric of reality into ugly curtains and such? The answer in my case has simply been a hatred of what goes on in the world combined with a hatred with what goes on in my life which led me to be susceptible to such claims. But what actually pushed me from "Ha well it would be nice if the human race died out but I don't think there's a moral reason for it" to all high-and-mighty, antinatalism spouting arrogance-master estnihil was just time. I just had to be exposed to the ideas time after time, and given time for the ideas to sink in, and after giving myself time to try to refute such arguments to no success, I eventually arrived at antinatalism.
And I expect the same is true of most antinatalists. I don't expect that every antinatalist hated the world and looked for reasons to justify their hatred - though a good amount certainly walked my path I'd guess. But what I do expect is that, for some reason or other, pre-antinatalists became antinatalists simply through repeated exposure, and possibly through innate susceptibility (caused by knowledge of world already). Now being exposed repeatedly doesn't have to happen through world-hatred per se. It could easily develop merely by hearing about antinatalism and viewing it as an interesting subject, even if untrue. If you go through the arguments enough, find yourself constantly unable to pick out any flaws, then you will eventually find yourself becoming an antinatalist, as a rule, unless you are in some way biased in favour of natalism.
So no, we aren't all depressed freaks waiting for the bus, trying to pass some time by writing a blog (I am, though). Antinatalism does not require depression. It doesn't even require Weltschmerz. You don't have to hate the world to be an antinatalist - though it CAN help you get to that point. DON'T MISQUOTE ME, you really, really don't have to be in a comatose, destroy-the-world, I-wish-I-was-never-born kind of mood to favour antinatalism. I have met several such people who are not of that opinion (though they have no blogs). This post is for you, critics. Antinatalism is not a mental illness, nor is it revenge against the world. It is a philosophical position justified by a heck of a lot of logic. If you can argue with it, then fine. You're justified in saying it is wrong, and if I see your arguments I will change my position. But if you can only say "you guys are whiny/emo/depressed" or "antinatalism is absurd/unsound/based on faulty logic" and expect me to change my position, then you will sadly be mistaken.