Hi diburning
All comments on the homepage on FlyerTalk are moderated. One person is in charge of that moderating and they may take more or less time to moderate the comments depending on their workload.
But, I know that waiting for a comment to be approved can be frustrating, especially when you're responding to another comment, etc. I've made a note to my team to check the queue more frequently!
Thanks,
IBMeg
Meg