"Hide imported topics until there is a reply" not working?

I am using the embedding feature with JS to import posts into Discourse.

I checked the box that imported topics should be hidden, until there is a reply. But this does not seem to work. When a user visits my page, the call to Discourse is triggered and the topic is created instantly.

Maybe I am using it wrong?

Thanks for help!

Oh, got it. Was logged in as admin when I visited my posts, it did not hide them. As logged out user, it seems to work. Or it was because i unchecked and checked the setting again.