Programmers.SE supports somewhat more subjective/philosophical questions than SO, but I doubt a "Do you feel the same way I do about X" will work on any Stack Exchange site. People still have quite a bit of trouble figuring out exactly what does or doesn't fall within scope at Programmers though (the last time I counted, a simple majority of questions were being closed) so you probably want to read its FAQ and attempt to phrase your questions to be constructive before asking something there.
To work on Stack Exchange in general, it still needs to be a question with some sort of real answer, not just inviting others to voice their agreement or disagreement with your rant.
To characterize the two, I'd give a sample question that I thing would be reasonably suitable for each (though others might disagree):
SO: I've written this code and it doesn't seem to be working out. Can anybody suggest a better way to write it?
P.SE: Several times, I've tried to write this type of code using the Visitor pattern, but it generally hasn't worked out well. Can anybody suggest an approach that's likely to work better in this type of situation?