There should be a requirement, that before you can proceed with the Jailbreak. You can successfully enter DFU mode. It would eliminate all these inane posts.
There should also be a requirement to check someones personality before signing up for a forum but hey I guess that technology hasn't been invented yet.
And you should know that it is possible to 'Brick' an iPhone.
Just very, very difficult.
People use the term far to freely.
I'd like to know of one instance when that has happened. I'm sure it CAN be done. But the likely hood is about as good as you an I winning the lottery on the same day.