I find this to be quite acceptable. Reddit is constantly facing the question of what exactly a downvote is. (There was even a very funny comic on the topic rece

I find this to be quite acceptable. Reddit is constantly facing the question of what exactly a downvote is. (There was even a very funny comic on the topic recently.) Everyone sees downvote as the opposite of upvote, which is understandable, but this gets problematic because people don't like being disagreed with so polarizing arguments tend to end up with net 0 upvotes. Just by changing the name from downvote to flag it makes it enforces a different user behavior.