I think curation wouldnt work, you just vote with your hivemind or wait for it tot swing decisevely before voting. It all becomes middle of the road
Discussion
I'm assuming voting would be blinded to prevent forecasting like that. Results would be revealed only after voting concludes.
Probably ways to circumvent that, but main thing is I don't think punishment works when trying to find the best content, because it rewards conservative choices and best content is surprising, varying wildly.
If you have the top most surprising, radical, possibly good content the voting could select for most appealing to the broadest base. Like reddit memes from 4chan memes.
It would certainly be an interesting experiment.