Reverse Network Effects

in

1. Less Sophisticated Participants – See Quora
2. Increase in Abuse wits Scale – Wikipedia / Twitter
3. Becoming Echo Chambers – Youtube shows you videos based on what you’ve watched so you only see things you agree with, not what you need.
4. Hive Mind – Reddit has been criticized for getting too insular
5. Long Tail Abuse – Even Wikipedia only controls quality on top 20% of articles