@timcliff,
Downvotes or flags, if someone use it for great purposes as you said, it's acceptable! But some people use it to bully others, that's can't accepted. Anyway if downvote for great purposes, it encourage people to be more creative! That's how I feel it!
Cheers~
which is why we need to have a public daily list of rewards and flags per user to double check if such things happen