Parson is quite correct. I've had such things happen myself -- and not only when using the "quick reply" (I had it happen three times running with a quite lengthy post for the "morality" thread, and finally gave up in disgust -- I was
not going to make yet another half-hour attempt to put my thoughts across only to watch them disappear into the void....
). I don't believe your post was sent to any sort of moderated queue, unless it had a link in it or somesuch (and I've seen nothing of that sort about this thread), so I'm afraid it's likely simply become random electrons floating off somewhere....
At any rate, yes, the thread has likely died -- or at least gone into suspended animation, unless or until someone else has more to add to the discussion. To be honest, at this point, I doubt I'd be contributing more (though one never knows), due to time constraints; but I'm glad you found it of interest, and (as well as offering my own greetings upon your joining the Chrons) urge you to join into any other conversations you may find similarly stimulating....