to ban politics is impossible! everything is political, even if it doesn't please one. for example: if you are pro choice or not is political, just look at the laws. how do you want to talk about things without becoming political? so by the cause itself it is impossible to not be or talk politically.
it is even a philosophical question, and i think a very important one. if you ban "politics" from a forum or a list of permitted things, you create a precedent that allows afterwards to ban everything that is defined by anyone as "political". that opens a door to arbitrariness and therefore to despotism. for example: one person complains about the fact that n is not allowed to be bought in his country, another persons answers that he should not moan around and that he/she should understand how important is life and that he/she should understand why laws in her/his country are as they are and so on.....
this is or could be seen as political (actually it is!) so it would be banned or, even worse, could be required to be banned by someone or even anyone ,by any individual (even pro-choice people for example, just an example)!
by banning "political" things historic enlightenment would be banned, just as freedom of speech and, not the less, sense of reality. where begins the difference between something "political" and something "nonpolitical", where does it end?
sure they are not easy these political discussions, but is one important part of freedom! it is the essence of our freedom! banning politics would mean to ban discussion and therefore freedom of speach. if someon says something that i dont like i just have to define it as political, and then he/she is out, i even don't need an arguement.