there is no 'middle' party in Poland (or if it is it's not PO but PSL)
The "left" faction within PO are probably the closest to a centrist party in Poland. Always wondered why Jaroslaw Kaczynski didn't continue with his centrist platform, actually.
The PSL too, these days, I think - they pretty much left peasants to PiS.
PO simply hijacked the 'middle' because the system (thanks to the media) pushed PiS out of the middle
They were never in the middle, they merely pretended to be. Their actions in Government were anything but centre - they were/are neurotically hard left and hard right at the same time.
(actually it's PiS that are christian democrats with a bit more socialist approach
PiS are no way Christian Democrats - they're left of the SLD on economic/welfare issues, and far more right wing than your average European Christian Democrat when it comes to other issues. They never were - their success was in convincing the electorate that they stood for something new that was totally opposite to what the SLD offered.
(and that not that much if you compare how much of a welfare state Germany is and how much Poland now) )
But they want German style policies in a country with far less money. That's socialism.
PO is a party of shady deal makers including the top ranks and of those who seek easy money and time (Roman Kosecki and Iwona Guzowska are serious politicians?))
Who doesn't seek easy money and time? Are you seriously suggesting that PiS, home of the TKM slogan, aren't out for the same?
(and Guzowska did something right to get over 22000 personal votes!)