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Some people deal with confidential files and use Dropbox for these. It would be very useful to allow people the option to clear their "Recent" files at will to allow more privacy and discretion.
The problem is worse because they are grabbing file activity outside of dropbox, I open up a will to work on and family members will see it pop up as a recent activity in dropbox. I don't need them seeing that, as an example. This is a typical software development cycle issue. They have a good product but feel they have to add more and more each time so you get a bloated program that ends up hurting the user. I guess we need more votes to get this looked at.