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3. Copyright and Limited License

Steemit contains data, text, photographs, images, video, 
audio, graphics, articles, comments, software, code, scripts 
and other content supplied by us, the Steem blockchain or 
our licensors, which we call “Steemit Content.” Steemit 
Content is protected by intellectual property laws, including 
copyright and other proprietary rights of the United States 
and foreign countries. Except as explicitly stated in these 
Terms, Steemit does not grant any express or implied rights 
to use Steemit Content.

tl;dr no :-/

No one owns it. It is on the blockchain public data base. Steemit is just a user interface.