> But, for example, say someone posts in a thread about the value of prayer, and basically the only responses would be "I agree" or something short along those lines. So nobody replies because they don't want to write such a short post, and the person may feel that their post wasn't good because it didn't get any replies.

I posted something a while ago about the nature of time and perspective and such. I thought it was very interesting and well thought-out, and I couldn't wait to see what other people had to say about it. I got no responses outside of "hey, that reminds me of this book I read once" and the ensuing conversation about how to find a copy of that book. In short: so it goes. It is not the responsibility of the people who read my post to make sure I think it was good, and it's not the responsibility of people already involved in the community to make sure everyone who comes along feels appreciated.