I'd love to just ask a simple question and not have to worry about spending a large amount of time to make it perfect. Why is Stack Exchange so strict on question format and content?
You're not the only one asking a question, in fact there are lots of others doing so. So much so that there are more people asking questions than people answering them.
This means that your question is basically competing for attention with all those other questions asked by other people. Answerers will naturally rather spend time answering well written, easy to understand, clear questions than meandering streams of consciousness.
If you can't be bothered to write the best possible question, why should anyone bother to answer it when they could answer the question of someone that is prepared to do that instead?
The more poor quality questions that answerers have to wade through to get to the answerable ones the more it will put the answerers off, after all they are here to answer questions, not to simply look and fail to find questions to answer. As a group we indicate poor quality questions using downvotes and closure for two main reasons:
to tell the asker that they need to improve the question as it likely cannot be answered in its current form
to tell any potential answerers not to waste their time here so they can spend their time helping someone else who has maybe written an answerable question.
There are people who try to clean up questions where it's possibly to do so by improving the grammar and spelling but they can only do so much if most of the information required to answer is still in the poster's head rather than in the question itself.