It is very sad that people feed themselves on such prejudicial attitude .
The talk and edit history of this article is at least as interesting - while I'm not disputing your general claim, @Monia (though I've never seen the attitudes you mention at first hand), some of the claims look at least worthy of some proper legal-style cross examination.
For example, I'd certainly put this one to a jury:
Writing in The Guardian, British Foreign Secretary David Miliband described Poland's conservative Law and Justice party as "far right". His language sparked a protest by Daniel Hannan of The Daily Telegraph, who said on October 29, 2009, that the British Foreign Secretary David Miliband should apologize to the people of Poland.
Right. Notice there is no formal complaint from either the Polish Ambassador or even from the Kaczyńskis, who have form when it comes to noticing the alleged slanders of others. Only from a newspaper which, while it is on the quality side of the market, is not afraid of pushing a quite hostile agenda to the Labour party in its opinion pieces.
Opinion of this kind is no better or worse than what it seeks to address. And anyway, it's not entirely wrong to say this with regard to many PiS policies and its one-time alignment with Kamiński's lot - though of course PiS is defiantly socialist on economic policy, just like everyone else.
Where there is anti-polonism (and not just accurate criticism of Poland; that is a quite different thing) it's right and proper to fight it; but creating demonologies is ultimately damaging to that cause.
A (in Poland and lovin' it)