User blog comment:Sannse/Dealing with Bullying Online/@comment-5188557-20160914165800/@comment-24055022-20160914171920

I'm guessing you haven't noticed, but the author of LightBlock purposefully broke the code and it no longer works. You can use MessageBlocker, except that it doesn't block any moderators. I think there's a new one you could use as well, but I haven't tried it.

You can put the entire code of LightBlock into your personal js to make work if you still wish to use that, though.