And how is M$ accountable ? They now have the arbitration clause in their EULA, you can't start a class action lawsuit against them, only small claims.
As for more vulnerable to hackers, come one now, who is the king of malware ?
As for quality of FLOSS:
Come on M$, you can do better than that ... or maybe you can't, maybe you're just good for nothing and cannot face up to inevitable extinction.