I'd like to highlight that I2P network is on-topic at Deep Web and it's already in private beta at:
To access the site just go to the proposal page and follow the link (click on Visit), then you'll be able to register a new account.
The site has over 400 users and has at least 10 questions related to I2P which needs some high quality answers, and many other questions related to different overlay networks such as FreeNet, Zeronet, and many more, so it would be great if we can join the effort to make the private beta survive instead of creating brand new proposal which has less changes than the Deep Web have (in terms of the scope), because The Deep Web site includes all the overlay networks and it's still struggling to achieve its healthy activity. When the private Web Deep beta will fail and we did everything what he could to make it work, then I2P proposal would be still good to keep.
Proposal: I2P