This seems like an issue best resolved through Dropbox support, not through HN Soapbox support. Edit: My main point is that I come here to read Hacker News, not Some Other Guy's Support Problems. Treating every dropped use case as a public relations crisis is just an exercise in getting yourself worked up for no reason. If this is a real issue that affects multiple, real users, then I'm sure Dropbox will do something…
Whether or not it's a PR crisis, it is at a gotcha that is worth knowing about.
Unless, of course, you're the type of person that just likes to get pissed off at companies.
Reading this didn't make me pissed off. DropBox made a mistake, which I assume they will fix. In the mean time, reading this made us better informed and safer.