Hey, just as a funny side note, I implemented this on this very domain back in the early 2000s. Gald to see someone else is using the domain this way :-)
What did you do with the people who had signed up for you site?
What company would you trust to launch and maintain this kind of service?
I feel like WordPress.org or Wikipedia Foundation would be two companies with the right moral compass, funding and longevity who would be great backers of something like this.