Maybe scrapers is the wrong term (what Site Lock called it) But I use Buffer (social media scheduler, like HootSuite) and the Site Lock firewalls were blocking it from retrieving a preview with a picture and snippet. Also, smaller social media like minds.com and mewe could not retrieve pics or snippets. Only would post a bare link. Does WordFence prevent social media sites, or schedulers, from retrieving pics and text? Bare links make for poor posts.