How can I allow users to upload media with content box empty
This is how BuddyPress works, BuddyPress does not allow empty status messages. Sorry to say but that is not possible.
While I can understand this for status updates, I can’t fathom why it should be the same for uploads. When the Activity Plus plugin lets you upload images without inputting any contents in the status updates (pretty much like Facebook), I am sure there must be a way of achieving this in Buddypress as well.
If you come to a solution please do let me know