Meta post - Facebook strangeness

My blog posts here get thrown up on Facebook as well. In all the time this has been happening, they have never made a ripple. Now suddenly, this week, there is a flurry of comments and discussion. Weirdness. Perhaps if people start to comment then it is more likely to turn up in other people's feeds? I don't tend to pay much attention to the machinations of FB, perhaps this is obvious. Still, odd.