Karma feature?

[brylie]

It might be useful to build a karma/trust system into this project. For example, new users would have fewer privileges than people who have been more active in the community for a longer time. Activities like sharing or being helpful could be awarded karma points, while comments against the community etiquette would receive negative karma. When users gain a certain level of karma, they might have additional features such as:

• downvoting
• adding more or longer content
• inviting new community members

Of course, not all of the features mentioned above have been implemented but are just intended to illustrate the idea.

What are your thoughts and experiences with "karma" features in social networking software? What are some projects/communities where a "karma" system has been beneficial or detrimental?