Valid points, although I do not have enough experience with p2p networks (and almost no knowledge of skype's particular architecture) to judge but 20% - 30% of

Valid points, although I do not have enough experience with p2p networks (and almost no knowledge of skype's particular architecture) to judge but 20% - 30% of SN does seem substantial. What I would like to see and couldn't find anywhere is more details on the objective impact it had on the users (number of users that had degraded/no service etc.). I think it would give a more complete picture.