On: PageRank has revolutionized web search but maybe also delayed social apps for years (due to fear of out of control spam in such apps). Do you agree?

[immad]

I don't see many people being discouraged to make social apps. A lot of the internet is based on social interaction (forums, comments, reviews, chats..) and wherever there is spam there are anti spam-measure in place that work reasonably well since these apps are all pretty usable. Maybe I just don't get what you mean