I made this mistake on iOS6, and swore I wouldn't let it happen again with 7 -- simple instructions, yet so easy to forget you need to move from beta -> release.
I remember seeing similar behavior trying to do testing in a cafe using a Verizon MiFi over LTE. I called up their support staff and they tried to blame the problem on me saying they don't block anything, it must be on my end...typical.
I can't say I've ever noticed this feature before on Dropbox. I came across it while searching for the correct use of the word/term packrat (with or without hyphen). Nice use of the word on Dropbox's part.
Interesting looking tool, I'll definitely take a look. Finding a time that works every day for scrum becomes difficult across timezones, it seems there's always someone that "loses".