Skype used to be P2P before the Microsoft acquisition. HN tread when it was switched off https://news.ycombinator.com/item?id=3915479 https://news.ycombinator.c

Skype used to be P2P before the Microsoft acquisition. HN tread when it was switched off https://news.ycombinator.com/item?id=3915479 https://news.ycombinator.com/item?id=3915479 It offloaded routing to peers that had better hardware/bandwidth. The downside was that many people were not aware of that at the time, myself included, thus on some computers Skype would seemingly consume more resources than expected.