Anybody know what API they're using under the hood for this? I have wanted to use the delta REST API (https://www.dropbox.com/developers/core/api#delta) but since I can't limit it to the subdirs my app cares about, I get overwhelmed with a lot of noise and it generally ends up being more data than polling and walking the sub-tree each time.
The delta API is a real pain to work with unless you're interested in keep the entire Dropbox state in sync.
I ran into the same thing and it was only on my (fairly inactive) Dropbox account.
The other problem is that the API doesn't differentiate between a simple rename and a delete+create. I understand that's just file system semantics but I wish their API was a little smarter than that.
