go learn about Analytics services.
It's not that they find out who you are, where you live etc. They do just collect statistics about how ppl use your website so that you can learn what's good and how and where to improve. Just like when you make a map and test it with friends.
Any, I say, ANY cms [this one too] stores datas about its users.
So we can already track your IP. And OC, block it or, most nicely, spot it to some antispam service like Akismet used by millions of website all around the globe.
Knowing someone's IP isn't really knowing who he is. You still don't have your IP marked on your face, do you?
And if you care about your privacy (dunno why) you should really go for update because the security of this install is lower than .. oh come on. even a kid can hack this.
Sure. Are you a webdesigner? I think no. You should just thank for having so many ppl happy to give the community a real help and still take care about what you think. But there are limits.
Why not the only community site?
Because the one-man-cms is the most stupid idea ever. How do you plan to keep it updated? It's 2014. The good things are already here, there is no reason to make something yourself wich will never be better than its competitors. Wordpress is ruling the web because it is supported by a community of millions of ppl who works on it adding features, fixing bugs and updating every part of its core. Every day. Always. How can you compete?
And OC, it's the same for services like GA. It's already here, it works fine and it has all the features you'd need.
And all this tools are offered for free.