File date changing

I agree it's crazy that dropbox does this. Five years later, and this still happens… Files uploaded from my android phone to the dropbox app on android maintain the original creation date, but as soon as I get access to the same files on the web version or desktop app on my mac, the creation date has changed to the upload date. There is no rationale for this, Dropbox should not change file metadata without my consent! Luckily the Exif metadata are still intact and one can use apps such as A better finder to retrieve that information and pass it on to Finder, but it shouldn't be that difficult… I also noticed that location metadata may be lost, particularly on videos, so once a video is imported into the Mac file system, the location metadata are not recognised any more.