Reddit freely admits the content posted to their servers remains the property of the poster. So they would have a hard time legally in that avenue.

If you think about it, it seems like to maintain their section 203 protections they would have to agree with that stipulation. If they claimed ownership of the content posted and displayed, they likely would be liable for copyright infringement, violations of worldwide pornography or obscenitiy laws etc and would have to then have to become the content curators to avoid being sued into oblivion. IIRC the website is banned in certain countries for that reason.

That might backfire on WD. I wonder if people will be posting pics of successive warnings like a trophy. Like sometime posting screenshots of router uptimes.