Viral: For instance, why do you use the word “irrevocable”? Perpetual essentially means the same thing but irrevocable takes it one step further. It has such a negative connotation. At Microsoft, I’ve only seen the word “irrevocable” used on intellectual property that we give to the community. For example, all the technologies outlined in our Open Specifications Promise are irrevocably given to the community as outlined in those terms and conditions. But in your case, it’s like you’re taking other peoples’ stuff and giving away rights. Isn’t “perpetual” good enough?
Leonard: I’m not a lawyer so I’m unsure if there’s a reason “irrevocable” was used instead of “perpetual”. I’ll take this back to legal and get back to you.
Viral: What about “exploit” ? It’s kinda negative too and nefarious sounding in a way.
Leonard: I already took that bit of feedback back to legal. Basically lawyers don’t speak the same English as you and I. While “exploit” is a well-defined shorthand word used in the art between lawyers, I understand the common connotation is different from legal interpretation. We’ve since changed that section to remove the word “exploit” to better clarify our intent.
"We believe that it is important to protect the privacy of our customers as well as their stored data and it’s wrong to support the distinction others have been making. Your data is your data, in whatever form it takes."
Source @ Technet Blogs