InterTwinkles has shut down.
Thanks everyone for making it a fun experiment in online decision making! If you're looking for other friendly free tools for groups, I recommend:
There is also a simplified version of progressive clock which still works: https://timeoff.intertwinkles.org
If you did not request an export of your group's data during the shutdown period, there's still time. Contact email@example.com immediately if your group needs to access its data, before it is destroyed permanently.
If you are a developer interested in continuing InterTwinkles, the code is still free!