[elad]

Which makes the phenomenon even stranger - nobody here seems to be able to come up with a good explanation of scribd's success, yet somehow they do succeed.

[huhtenberg]

Given this - http://www.techcrunch.com/2008/05/17/scribd-goes-straight-ba... - it was good for porn sharing. It still probably is, because I doubt they have a reasonably good "flesh tone detection" software in place to fully automate the process.

Incidentally, this may also explain their steady traffic growth. It'd be interesting to look at their traffic numbers once all porn is eradicated.