Visible effort is entirely beside the point.
If it's a good question -- one that might get googled, or others are likely to benefit from reading / learning -- then who cares how much effort the poster put in?
The question has to be clear and answerable -- and toward that end, some folks are better at asking questions than others; I've seen a lot of helpful comments try to nudge the poster to ask the question in a better way.
As for respect -- again -- beside the point. Not even Rodney Dangerfield could figure that one out. If it's a good question...great. If it's not, you can help to improve it, close it, or ignore it. Mundane, anticlimax -- as Kermit and Fozzy would say -- 'Movin' right along...'
- One caveat -- I think respect in terms of polite language is probably important. Keeping appearances of professional competence and all that can build a positive rep for SO. 'RTFM' comments, etc., don't really have a place, IMO.