This question triggered my thoughts, but it is surely not the "best" (or I should say, worst) example out there. At the moment of writing, this question has 4 downvotes and 1 upvote. It is obvious that this question is of very poor quality, as it shows no effort and basically just says, "I want to do X with Y". It does not even ask a question.
(To avoid misunderstanding in case the question is edited, copying below)
I want to record voice through microphones and store on local disk.
This should be done using C# in a Windows application.
There seems no good reason why anyone would upvote this question. (To obtain a badge, maybe? But that's not a good reason.)
Do you think in such cases, there should be a penalty for upvoting? This would deter people from randomly upvoting without really understanding what upvote means.
I understand there would be some issues to consider. For instance, how do you decide what is a very low quality post? Too many downvotes could be one criteria, but then being in the minority does not always mean you are wrong.
Does the system already handle this situation? If not, can something be done about this?