[bhz1]

I believe a better description would be inconsistent results. More than once I needed to restore and re do a jailbreak. Mostly it was becasue I tried to shortcut something but other times I had followed the instructions to the letter. It may be true that a lot of folks dont follow directions or they misinterpret them. There are relatively few iphones truly permanently bricked.

Yes there are potential "dangers" but as Eurisko said, if you are that concerned you probably should not mess with your phone. If you cannot use it in its stock condition, you probably might be better off with a different phone.

It's much like when people drive their cars at high performance driving events, mess up and want their insurance to cover the damages. Most insurers exclude incidents that occur on racetracks. So often when people bang their car up they whine about no insurance. My philosophy is that either they pushed a bit too hard and exceeded the limits (there are those like that) in which case if they cant afford the damamge they need to kick it down a notch. On the side of mechanical failures causing an incident, that can't be controlled but one needs to be aware that it can and does happen. in that case if you can't afford the damages out of pocket, you better think twice before participating.

As far as the iPhone, a good rule of thumb is to have a spare phone to throw your sim into in an emergency if you cannot afford to be without a phone and don't try anything new if you are leaving the next day to go out of town. Most of the time things go smoothly but its not a perfect process.