Dear cyberjesus, people do things for different reasons.
Some are here in the spirit of "Never forget". They need some kind of assurance that they are on the "right path" now.
Others are here to help others to "get it" or to lend a helping hand to the ones that are suffering and come here to vent.
For others it's just the habit to come back to a forum that helped them many years ago. Now it is just chit chatting as in any other forum.
Myself, I don't have to find any truth. I construct my own truths. I left 2 years ago, but it wasn't hard in the sense of losing faith or searching for god. Just the loss of family and friends was hard to me. I became a non believer, atheist or whatever you want to call it during my time at Bethel. I never visited a website before I completely lost faith in the Bible as an inspired book. I was an elder and worked closely with people from the Writing Department (Publishing), but many things drove me into a state of not being interested anymore in the "universal questions".
I have found inner peace. I don't care what happens after death sets in (hint: nothing. Atoms go back to the pool of atoms. Nothing special.)
I enjoy the now and the present.