We've made the rank structure and permissions here on Vodafone Community easier to understand. The new ranks are live now and reward different types of activity, specifically
joining and visiting
contributing (receiving kudos and solutions)
If you're newly registered you'll have the rank "New Member" and can progress through the visitor and reader ranks. If you're posting you'll jump straight into "New Poster", and if your posts receive Kudos or are marked as a Solution you'll move up the contributor ranks and appear on the Kudos leaderboard on the Community homepage.
So - try it out, and as always let us know if we can help out.