I would say as long as you make the question easily discoverable and self-contained, extra background (within reason) is harmless and usually helpful.
In general, I would recommend putting the question at the very top, clearly marked, and preceded only by any context that is necessary to understand the question. Further, the additional background, etc. should be clearly marked as such and, more importantly, that there are no further questions in that background. Basically, I should be able to start at the top of the question, read down and know when I can stop reading because I have the the entirety of the questions your are asking. I should be able to simply not read the background and still have all I need to answer your question.
In your case, while you do clearly mark the questions (unless there are additional ones in the following sections which I haven't read), it is "below the fold" and not very self-contained. I have to scroll down to even see that you have a marked "questions" section, and then that refers to details contained in a solid page of text above which is certainly not all necessary to understand the question.
I doubt this has had much to do with the lack of response to this particular question, but I've definitely dropped questions that made it too difficult for me to find what question was actually being asked. My first reaction to multi-page questions is usually not anticipation...