I need some good advice. There is one math.problem which I asked here. It is my second attempt. I have some new ideas and new results, but question is already big enough. I don't want to delete anything in the old text but I realize that more information makes a mess. I don't know whether it is possible in this situation to create a new question? Or it is not welcome here?
If your updates are indeed updates then go ahead and improve your question.
But if your new information is only related to that question and could be asked as a follow-up question, then I suggest this last solution. This will come in handy for you too, because you'll get a better and more focused answer. Not to mention that it'll be harder to answer if you include many questions inside a single question.
Asking follow-up questions is totally legitimate and, why not consider it, it'll increase your reputation. :)