@Tetsu Tora - You may be in for a rude shock then as any picture in the galleries has the Facebook "Like" and "Share" links automatically added.  There is a thread in the Community Center forum started by auntietk back in July 2014, yes you read correctly - 12 months ago, where Rendo promised that the Facebook links would be an option that the uploading artist would be able to select or deselect.  To date this has not been done.  The typical responses to any request for updates are; "its on the list", "its with the programmers", "its out of our hands", "I promise this hasn't been forgotten", etc or the request is just ignored.

Link to the above thread if your interested - http://www.renderosity.com/mod/forumpro/?thread_id=2883123&page_number=1

Wouldn't this be a place to limit this?

With that box UNchecked, the FB Like and Share buttons are still there and still active below the image.