It's not that I don't believe companies can fix their problems; it's that I believe in feedback and the one form of feedback companies cannot ignore is revenue. It's Darwinian - if a company screws too many customers, they die.
So I haven't used Windows since Microsoft's deeply unethical attacks on OpenDocument; I moved all my US domains from GoDaddy to NameCheap after the elephants broke that camel's back; and Domain Central have all my Aussie domains after NetRegistry de-registered a heavily used domain name in very dubious circumstances.