Calm the fuck down, cats.
Reading the comments to that post, damn, it's just insane. People leaping all over this, like the Nazis have bought 6A. Look, there's two sides to it: you can choose to set your own stuff to a filtered setting, or people can "flag' stuff they feel should be behind this setting. The flagging is, of course, the huge issue. So, before you pop a gasket, read the whole thing.
Consider that anything that does get flagged gets checked on. So, just because Jack Asshole wants to start flagging your shit because he thinks it's funny, doesn't mean much when it's looked at and they go "oh, not actually a problem, someone's just an asshole." Besides, even flagged and marked "adult", it can still be seen by adults. It's not as if they go "oh, this is porn, it's to be censored from people"...just from those underage. A birth date in your profile, and you see everything, just fine (which, incidentally, means a 14-year-old can make a journal with a false birth date, there's no way to test it, and he's seeing it all, too...so it's much easier to cheat the system than it is for the system to stop things being seen).
In the end, what you have is a way for someone to potentially make it so underage kids can't see porn. Plus, something has to be flagged multiple times for it to be an issue, anyway, and even then, it's confirmed before being set...and then is still visible to adults.
So, what's the real problem? A private company wants to help make sure content on their server not appropriate for those underage can be handled, and instead of just heavy-handedly doing it themselves, they make it voluntary, with a system to allow others to express their opinion, but which is not dependent on those opinions for the final word. Sounds OK to me, really. Since my profile shows I'm an adult, I'll see everything, anyway.
So, please, go to the settings page and, at the bottom, make your choices and hit 'save.' See how easy that was, and stress-free? Problem solved, move along.
And, while we're on the subject? Angrily flagging that post and others as "hate speech" and whatnot to "prove a point" isn't helping anything, cats. All it does is annoy the people in charge and make them think that most of their users are useless squash-heads...which is, frankly, the way they are acting.