I've received a reply from the Manager of Moderation at the CBC (posted below), and I think his reply shows they're taking the issue of antisemitism seriously.
In an earlier email to the moderator, I suggested the CBC follow the Globe and Mail's example and entirely close down comments on stories concerning the Middle East, and the CBC moderator now says they will revisit this option.
Good. Even apart from the open antisemitism (which the CBC is now seriously trying to block), the majority of people posting at the CBC demonize Israel as an evil, racist, terrorist, apartheid entity that has no right to exist.
These Israel-haters will argue that they aren't old-fashioned antisemites. Yes, they have an irrational loathing of Israel. Yes, half the Jews in the world happen to live in Israel. Yes, the Israel-haters often extend their loathing to Israel's supporters, thus including the other half of the world's Jews. But, they will argue, they're not racists. They've nothing against Jews who convert to their religion.
I think that's true enough; the Israel-haters aren't old-fashioned racist antisemites; they're post-Holocaust anti-racist antisemites.
But for Jews, this is a distinction without a difference.
Hamas, Hezbollah and Iran don't bother to disguise their Jew-hatred or their desire to wipe Israel off the map. And even when they’re not directly propagandizing on behalf of these terrorists (which they do often enough), our contemporary antisemites are busily inventing a rationale for the genocidal intentions of Iran and company.
For its part - courtesy of Canadian taxpayers - the CBC provides Canada's most important forum for Israel-haters to promote their views, in effect for promoting genocide. That's why I say, close it down.