Islam.SE is a pluralistic site. This means that we are open to questions and answers regarding every interpretation of Islam. One of the earliest decisions we made was that we wouldn't allow sectarianism to ruin the site.
Every interpretation of Islam has its followers, and those followers are all convinced that their interpretation is the capital-t-truth and that everyone else is objectively wrong. Arguments about which interpretation of Islam is True and which interpretations are accursed heresies have historically ranged anywhere from civil to heated to dangerously violent for fourteen centuries or so, and we don't want none of that here: People have been at it for almost as long as Islam has been around, and there's already countless Internet fora out there full of people trying to prove which interpretation is "more correct" and getting nowhere.
We are here to share knowledge about the topic of Islam. Censorship is complete anathema to that goal, but good curation is vital; knowledge is useless if people can't find it. Part of that curation is that users are expected to ask focused questions which makes it clear exactly what knowledge they're seeking, and the answerers can provide that knowledge, and future visitors can find that knowledge because now they know where to look.
The aforementioned Internet fora are terrible at this sort of thing. People ask a question, and they're likely to get multiple different competing answers, often mutually incompatible, from who knows what flavour of Islam. Even well-intentioned, this only serves to further confuse the layman and muddy the waters for people who are actually trying to find information. Instead of gaining knowledge, people just leave with more questions and less understanding. In many cases it drives people with weak imaan to abandon the faith completely.
Stack Exchange gets around this by focusing on clear and focused questions, and clear and focused answers. Ideally, this allows knowledge to be easily found and shared, not obfuscated behind arguments and tangential discussions. If someone were to open a question that says, for example, "Is there anyone here who can prove to me that Jesus is alive in heaven using Quranic quotation," they should reasonably expect to find Quranic quotations supporting the idea that Jesus is alive, not answers providing exactly the opposite point of view.
We welcome your knowledge, and encourage you to share it with us. You can even share the knowledge you have gained by self-answering your own questions, although how well received such posts will be is entirely up to the community. But we do need to ensure this is a comfortable environment for everyone, regardless of their beliefs, so we cannot afford to be accommodating to posts that push opinions on people who did not ask for them.