[DanBC]

Have two buttons: "vote to keep open" and "vote to close". Colour them orange and blue. Release it to Reddit. Potential viral hit.

[addandsubtract]

Have one button. Release to Reddit. Potential viral hit.

[zatkin]

For anyone who doesn't understand this reference, there is a massive social experiment going on at Reddit: https://www.reddit.com/r/thebutton