Whoa there.
I can still see the comment when I log on through two different browsers. However, I’ve been able to get to the relevant page through their mobile site when I’m not logged in. I was able to see the comment there yesterday. It’s gone today.
I know some forum systems allow you to stealth delete comments like that (it’s known as “hellbanning” on Hacker News), but it tends to be used only as a measure of last resort, for persistent trolls, and many experienced forum moderators think it’s generally a bad idea.
I didn’t know Facebook allowed you to do that. If it’s the standard way that comments work on Facebook, then it’s really, really weird. On the other hand, if it’s an optional feature that Answers in Genesis are using in this case, then it’s really, really underhanded.