The plan is simple:
You register and host N domains and in return get N*10 links. So if you join with 10 sites you can get links from 100 sites. We all join in with several sites but get to benefit from 10 times as many links. This keeps costs down for everybody while the benefits are high.
- You can join with maximum 10 sites hosted on same IP.
- Domains don't need to be aged or have links, you can register free domains.
- You don't need to manage anything, you don't need to…