I wonder if SF automatically turns words in the text into links to entries in a database, and unfortunately in this case someone used the word venom in a colloquial sense rather than the literal sense but the software couldn't tell the difference.
A bit like a certain their forum which does the same to words in its posts, then when someone on here copies and pastes a post they made in the other forum, the links to that forum are also copied on here. It's almost a full time job spotting these and breaking the link