What's happening to my threads?

I posted a cool video of my brother's band playing in church. It resulted in some lively and informative conversation. Now it's gone.:confused:

Early today, I posted a NGD thread on the main forum. Gone. I finally reposted and it's still up.

Your thread was closed and then removed because the "lively" discussion become an overtly religious discussion in violation of our rules.

None of your other posts have been removed.

Thanks