I sometimes want to ask questions that I know will not be popular, yet I think are good.
It's a weird feeling. And its double. Some questions are nontrivial, hard to state clearly, or simply unpopular. It has some disadvantages doing so thus it bothers me.
So what to do? It appears to me as perhaps the cause of undownvoting in that sense that people realize it was not a bad question 'after all'. I guess we all have different interests , but I would never downvote on something just because it is not 'my thing'. Tastes differ and so do our skills and experience. I wonder if maybe votes would be better if they were linked to the reputation of the voter?