A good question will receive many answers, and much more views than normal.
This level of activity is not reflected in the upvoting of said question. I recently encountered several such questions, which until I pointed this in the comments (like in this example on SO) stayed in the lower 0-2 upvotes.
My two suggestions:
- Automatically upvote any question you answer, with the ability to cancel this up-vote. This makes sense to me, as I answer only questions I like/are good (and I suppose others too).
- Display popup message similar to:
Have you considered upvoting this question?