I will upvotes you just because you are honest rather than I agree with you.
Sony - definitely a pissed off sacked Sony sys admin, I've seen that before;
LavaBit - flawless, proof any individual can outsmart an APT, he gave us all hope;
RSA - do you mean the NSA corruption attempt or Adi Shamir 'post encryto speech'? - if the latter then that does worry me, he's way smarter than me and if he is suggesting relying on exfiltration instead of encryption, then I'm doomed, we're all doomed - if the former then we are reliant on the Ladar Levisons of this world ;
McAfee - this packet of peanuts may contain nuts;
Linux, accusations of Chinese State sponsored hacking, BitCoin - file under 'shit happens'. Take the punch and roll with it.
"Marketing ploy, I tells ya!"
You won't believe me then, or at best you'll believe me and not my beliefs. I'll say it anyway, if you doubt me then I have an unusual but traceable history. I trust them more than any other third-party provider. I have been fucked over repeatedly by my state, seen that repeatedly happen to others too. It sprang from CERN, and most brains there are pure science, and most ancillary engineers and support there are infected by that. They are bitchy to each other but they are not marketeers in the normal sense.
Everything eventually comes down to trust in a world where people are paid to lie. I've been betrayed obviously by someone who is a state employee as our private communications couldn't have been hacked, he and the courts kind of admitted it, at least to my satisfaction. If you are doubtful of anyone, anything, then test it through black box testing.
I have been wrong in the recent past. I assured someone a few years ago that they were being paranoid for things Snowden has since proven to be common-place. So don't take my word for it, test it. I am about to go in prison next week for a silly, non-security related reason. I'd have been in prison last year if PM was dodgy - trust me?! Nah, try it for yourself. Is OpenPGP marketing - is, well what ever you do trust? Some things just work. Some people are just decent.