Updates:
1. My bank (Mizrahi Tfahot) has refused my request from more than a month ago to wire about $7,500 to Mt. Gox. They said they would "look into whether my request is ok or not" ... and haven't gotten back to me yet.
2. Another bank (Beinleumi) has formally refused one of their clients, and wrote "... refuse any activity directly or indirectly related to this area of activity.
Just to be sure I understand, they have refused to wire a portion of your own legitimate savings to a third party of your choice? Period?
So:
1) If you owed me $7,500 and wanted to repay me by wire, would that be ok?
2) If I, living in another country, choose to convert my $7,500 into some clothing, a mountain bicycle, vintage wine and some BTC, that is presumably outside the jurisdiction of any Israeli business?
3) If I later choose to donate some BTC from my bank to your electronic wallet, surely that is also outside the responsibility of a competing Israeli bank?
If my premises above are correct, I can only suggest you move your savings to a different bank.