Canadian libel is someone powerful deciding to harass you through the courts using your views of them as an excuse to do so. It bears no resemblance to legitimate English-speaking libel laws in the US, AU, UK or NZ which empower judges to throw out obvious harassment (e.g. SLAPP, any attempt to punish someone for their opinion, anything that isn't clearly a false statement of fact). Unlike all other charges other than treason, Canadian libel law has reverse onus: if someone says you "hurt" them, the court is required to believe it unless you can respond to it. To make matters worse, libel cases can be filed in pretty much any jurisdiction. People come from all over the world to sue in Canada for libel since the laws entirely favour the plaintiff.
BC media lawyer Dan Burnett is an outspoken advocate against Canadian libel and its very debilitating and embarassing effect on Canadian online media.