What a life. Update comes out to fix real bugs, add features, plug security holes, and the jailbreak crowd has to sit back and wait to see if it breaks their hack. And if it does they are stuck in a time warp, their platform is arrested at the version the jailbreak works with, waiting for the hackers to fix their hack if it's even possible. Lather, rinse, repeat. How long did the iOS untethered jailbreak take to release? How many months after iOS 6 came out? What a life, just so you can beat your chest and tell everybody how YOU can do anything you want with your iDevice. Impressive.
I've just added nearly everything I can think of to my iPhone to make it optimised for my use.
I can download files of any size over my paid for cellular data (including torrents, which is a great feature that is on Android) and integrate them into my apps, unlock my device with a more secure swipe maneuver negating a timely and annoying PIN entry, change music with volume buttons so when I'm using my amp through the dock connection I can blindly change music or just do so without any annoying on screen prompts, I even changed my feed for the default weather app that gives me more accuracy for my local area ... you know I could go on and on but I know you don't care to hear me.
I enjoy being able to fix tiny issues I have with the things I pay good money to use. Like setting up my PC, setting up a jailbroken device takes a lot of time and I'm not interested in upgrading to 6.1.2 (which is really barely worth upgrading to even if you're running stock iOS 6.1) in order to run that ordeal again (though you can back up everything done with cydia anyway).
iOS is secure, and as Apple updates it every time an exploit is found it minimises any risk when using it, even if it is an older version. Especially now with the vast majority of users on the latest OS.
And just for the sake of mentioning this; iOS 7 is going to have to be pretty bloody amazing for me to consider upgrading as there is nearly no possibility of it having what I desire my mobile to do.
I have just as much difficulty in pondering why you would use your phone for so long whilst not being able to tweak it in order to actually make it a more powerful computing device. The other option is waiting for Apple to upgrade it so it slowly turns into something it could have been right now and forever more.
Mostly, I would hope, people leave beating there chests to gorillas, and I realise this may be somewhat hypocritical
(The only reason I have even bothered replying is because of the anonymity of forum posting and my desire to kill some time and your declared confusion, which I'm sure you share with others), but that's truly not what jailbreaking is about at all. At least for me, and many others. I have at times felt like an idiot for even having an iDevice as the majority of users just want the status of the apple because to them it means nothing but brand identity. I like Apple because they make great products, and if I can tweak them to be more optimised for my own personal use, I will.
