* More than anything, I think it's good for things to end! I figured interest in the site would die off over time (and it started to), and I thought it was better to close things out providing a special experience for the people that used it than to keep it up to get a few more users
* Costs started adding up; donations stopped matching them. I coulda figured out how to lower my costs but I wasn't excited about it.
* While the site was up I felt an obligation to make sure someone hadn't found some trivial workaround to deface the thing and I didn't want to do that anymore.
I'm very pro ephemeral stuff! So I feel good about the decision. But it's a good question.
