For the sake of etiquette i sometimes do upvote questions that gets my juices flowing.

But if you ask questions for the sake of getting upvotes then tbh you're doing it wrong. There's no way nice to say it. 

Personally I ask questions on Musing when I fail to find good questions that interests me. Either that or I want to start a discussion with people that knows that they're talking about with something I'm already interested in.

I honestly think that are not using Musing question asking to its full potential. 

For example, there are already 5 people who answered your question (at the time of writing). Including myself it will be 6. Perhaps more as time goes on. You now have 6 potential Steemians you can start a conversation with, build rapport, connect, and who knows, even make friends with.  Humans are biased, If I like you enough to follow your work and see your posts in my news feed, i might just click it. And when I click on a good post there a high chance i would upvote and comment on it.

But all this is lost to a person who is looking for the short term profit of asking questions to get upvote.