I have a theory that perception of anonymity is directly related to long-term enjoyability; as social networks become larger and more people you know join, you feel less anonymous, and less likely to post original content or espouse the controversial views that lead to interesting discussion.
On the other hand, you have much more anonymous (remember, I'm talking about how anonymous users feel) venues like reddit, 4chan, or IRC, which have a rather large niche that is relatively stable and full of engaged users.
On the other hand, you have much more anonymous (remember, I'm talking about how anonymous users feel) venues like reddit, 4chan, or IRC, which have a rather large niche that is relatively stable and full of engaged users.