Out of curiosity, do you consider it acceptable to downvote a message for not contributing to the conversation, even if it is technically on topic? I try to fol

Out of curiosity, do you consider it acceptable to downvote a message for not contributing to the conversation, even if it is technically on topic? I try to follow official policies, but I confess that I often just think of voting as a general way to express my opinion of how a comment contributes to the quality of the discussion.