I recently saw a question requesting that the answerer upvote the question if they deem it worthy.
I personally have no problem with this; I think there are a lot of very creative questions on this site, and they don't always get the votes they deserve.
Part of what makes Puzzling different from other SE sites is that the "questions"/puzzles (especially the really good ones) often require a lot of thought and effort to put together.1
The SE framework is set up to encourage quality answers more than quality questions2 (you get twice as much rep for an upvote on an answer as you do for an upvote on a question). But on Puzzling (unlike many other SE sites), the question often (not always) takes more effort than the answer does.
There have been several questions I've encountered that have been so masterfully put together, with an obvious effort and attention to detail, that I've wished I could give them several upvotes, just to indicate how much I appreciated them.
It might not be technically feasible to change the amount of rep awarded, or the number of upvotes allowed (I'm not really sure how customizable things are from one SE to another)3, but I wonder if there are other ways we can help to recognize exceptional questions?
One thing that has been done is to start a meta question with the "Best puzzles of <time period>", but meta is sparsely read, and most visitors to the site will never see those lists.
Best puzzles of 2015 Q2?
Best puzzles of 2015 Q1?
Best puzzles of 2014?
Are there other ways we can think of to help excellent questions get the recognition they deserve?
1. I'm not saying this is never true on other SE sites, but a well-thought out puzzle will generally take a lot more time and effort to put together than a straightforward question about any topic, even if the question is carefully researched and worded, and is by all counts an excellent question.
2. Don't get me wrong -- we try to encourage both!
3. And I'm not entirely sure we want to go down that rabbit hole...