A consumer to consumer N-N network is much harder to coordinate a migration than a corporate N-N network, for one. Also messengers aren't as N-N since you end

A consumer to consumer N-N network is much harder to coordinate a migration than a corporate N-N network, for one. Also messengers aren't as N-N since you end up only talking to a small number of people after a while and don't actually want to move all your contacts. I don't want to move all my FB contacts either but the number of connections I sort of care about is still likely more than 100.