I'd say it could be troubling for dropbox. It's probably game over for https://aerofs.com though unless AeroFS drastically changes/pivots. For dropbox, they do have some advantages. Bittorrent brings up thoughts of piracy. Dropbox doesn't have that reputation and would be much more acceptable in corporate environments. Additionally, Dropbox has integration with a lot of apps and I don't see that happening with BT Syn…
1. A service with the word "torrent" in it will never be adopted by a corporate entity. (edit: "typical" corporation. Technology companies don't count) 2. You may be overestimating how much the average person cares about file storage size, 3rd party servers, or transferring large files.
Absolutely not true. Eg: I know film theaters use private Bittorrent networks to distribute the multi-GB master copies of their films to cinemas (yes, they have hardware DRM etc where you need a unique code to be able to play, but they have no problem using the best tool for the job).