My macbook run out of disk space and I found a 200 GB folder full of .dmp files.
the folder name was in: G7HH3F8CAK.com.getdropbox.dropbox.sync\Crashpad\
it can be found in Library\Group Containers\
There were thousands of dmp files and it seems that all of theme were simply dump files created by the Dropbox app.
I just wish that applications would clean their own crap from my computer, or at least informed me that they are storing that much information on my computer and that it can be found here and that it can be deleted.
c'm on devs - be kinder on your users.