Facebook looks to be testing a new option that would give users more control over the content which appears, or can appear, on their personal profiles, with a new keyword blocking feature that would eliminate comments which include specific terms from your stream.
Spotted by Facebook code hacker Jane Manchun Wong, who regularly discovers upcoming social network additions, the new option, as you can see here, would enable users to choose whatever keyword/s they didn't want to appear within the comment streams on their personal posts. Those comments would still be visible to the poster and their connections, but not to anyone outside of that, which is similar to how comment hiding works.
The option is much the same as personal comment filtering tools available on both Instagram and Twitter and would help to provide an extra level of reassurance to those who are having trouble with trolls and/or harassment - or who simply don't want to see particular comments.
Already on Facebook, Page admins can block chosen keywords from appearing in post comments, while you can also mute certain keywords for a selected period of time to avoid seeing any updates about a chosen topic.
Facebook hasn't officially announced this new feature as yet, but as noted, Wong regularly uncovers new additions well ahead of launch time.
Expect to see this update coming sometime soon.