I've been on here for a while, and it is like Trav wrote: a lot of people read, but don't post, or don't post often. Some prefer to just send a pm to another member.
Some get better and go on with their lifes, others find another forum, some choose not to do a lot of research, etc etc
If there are members that are really not doing well, and that are all of a sudden disappearing, we try to email them (if their email is enabled), or we post a new thread asking how they are doing.
And others have healed and post every now and then, telling us how they are doing
I love the success stories