I see many questions asked on Stack Overflow which have received one one or more answers but the OP has not added any further feedback on them at all. No comments, no votes, no accepted answer, no more information, and so on.
Since the people who have answered have used their time and attention to answer a question, the OP should not be careless. I think there should be a negative point for such users who leave orphaned questions out there on the network.
What do you think?