A very fair meta question. I downvoted this question and I don't so a lot of downvoting really. For me I like to see questions that are to the point. If they are excessively verbose then I don't like them and don't think they are good questions. If I feel my attention waning halfway down then I feel my mouse point edging towards the down button arrow. Also I had a suspicion it was a duplicate question.
It is possible to have long questions that are great but I feel the same way about questions that I do about films. If you make a 3 hour film it's got to be pretty compelling and I'm always thinking - couldn't this be done in 90 mins. Similarly if you write a page for a question I think the question itself should be pretty amazing and insightful to justify that length. If not then edit it.
Also as a moderator I can't cast close votes without that vote becoming binding. So when I am in the case where I think the question isn't great but I'm not sure about closing it then my only option is a comment to that effect and maybe a downvote.
That said I really appreciate your input and I hope you aren't discouraged with the downvoting. Perhaps a net score of -4 is a bit extreme. I've certainly seen a lot worse with far higher scores. I guess a lot of people didn't like it so I would be interested to see comments.