As you know it is not difficult to receive a death threat from some fanatical Muslim. I'm just writing to warn you all to be careful what you reveal about yourselves.
I typically avoid religious groups etc on facebook, but there are a few I have joined. I use my full name on FB (in case people I know search for me), searching with this name on 192.com reveals my full address - even though I am not listed in the telephone directory and I have never given anyone permission to share my personal details.
So just a warning, make sure you don't reveal your full name.
Good advice. I would add that it would be better to give out as little info about oneself as possible to limit the ability of pontentially dangerous people to "home in" on you by a process of deduction from a scrap of info here, a scrap there....