"That's a speculation on your part" Whereas your post is speculation on yours. "Nobody asked them to support it" At the same time, if they do open source it,

"That's a speculation on your part" Whereas your post is speculation on yours. "Nobody asked them to support it" At the same time, if they do open source it, people are going to see that it was once Dropbox, and any issues they see with it are going to be seen as the fault of Dropbox. "Just dump the damn thing online" Far more work than it sounds like. "Clearly their intention here was profits" They are a company with bills to pay and engineers to pay, right? "They won't do it so nobody else should try to safe email either." I don't see them going around and killing other people's email clients.