mainly gnu hysteria .... ie if it aint a gnu project it aint nice..
as for the bandwidth bit, thats how ALL the internet does what it does.. a small client machine on a domestic link would be useless and time out as the packet latency would be horrendous so would be bypassed as a matter of course very very quickly...
skype is written by the mob that originally devised kazaa and it was riddled with spyware and they were done a couple of times if my memory serves me rightly..

