I am new here, and I am not getting this, what exactly are you guys afraid of? It's not as if he would be posting naked pics of him with his bass, would he?
I don't know about that, I mean the guy looks quite jolly in a cute sort of way, a bit like your average innocently pranking uncle, I say let him have it.
I thought worst to be honest, at least it is safe in a way that nothing more is shown. Actually I could do the same myself posing naked behind my double bass, the thing its so big, no one would tell the difference