Anthropomorphic and teleological language is fine (IMHO) as long as it doesn't lead into teleological reasoning. It seems to me that your essay is crossing that line, while also cherry-picking the ways evolution tends to eliminate pain over the ways it tends to increase it.
If you do accept nature is indifferent to all suffering and lacking all purpose, why would you want to make it's purpose your own?
Life isn't "about" suffering. Happiness and pain are the carrot and the stick which nature uses. I am typically more concerned with what organisms do than I am with how they feel.
I embrace nature's purposes because it built me to do that. I seem to be relatively resistant to religions - and other memetic infections that would hijack my goal system - presumably in part because my ancestors also exhibited such resistance.
What do you believe that most people on this site don't?
I'm especially looking for things that you wouldn't even mention if someone wasn't explicitly asking for them. Stuff you're not even comfortable writing under your own name. Making a one-shot account here is very easy, go ahead and do that if you don't want to tarnish your image.
I think a big problem with a "community" dedicated to being less wrong is that it will make people more concerned about APPEARING less wrong. The biggest part of my intellectual journey so far has been the acquisition of new and startling knowledge, and that knowledge doesn't seem likely to turn up here in the conditions that currently exist.
So please, tell me the crazy things you're otherwise afraid to say. I want to know them, because they might be true.