Absolutely true. I take Nigerian e-mails on their merits: as I haven't had any dealings with anything even remotely connected with Nigeria [and do not want to], I see that there are no merits to any "contract payments" etc. from that quarter. And no, I am not buying bridges, either, and for the same reason.
And I see there are no merits to anti-Semitic propaganda, ahem . . . "policy recommendations" from people who refer to Americans who support Israel as "the Lobby" that has the goal of "stifling debate on university campuses."
Scams are scams.