I know that bitcoininformation was chatting with Bob. Maybe he can give us a hint if Bob is alright.
Bob is alright AFAIK. I and he did a small chatting when I loaned him some BTC(which was his last activity). He told me
Nothing bad happened. I am just in different forums now. So I'm not here as much 
-MZ
Why would he need to loan btc? I seem to remember seeing him offering to 'double people's bitcoins' somewhere (though I have no idea whether it was an imposter or not).