I'm not sure why the accent on "Stop using MS, it's spying on you!" is on MS. AFAIK every company is using your data and giving/selling it to the government.
How is MS more evil than anyone else?
How is MS more evil than anyone else?
EDIT: This really seems like an interesting question: _are_ there any advantages an attacker would have with skype's centralized system that they wouldn't with their previous p2p system? From what we've seen so far, I think the differences (from an attacker's perspective) are trivial.
Simply put, because of their market share, their evil has a bigger impact than other companies evil.
footnote: One is always completely free to decided if evil with more market share than other evils are more evil.