Perhaps you need to post x times to see it, or accounts go away within x days if you don't post, unless i set something, etc.
Heh, I always hate it when sites do that. I might not post or visit for a while, and then come back to find my account gone.
There are quite a few forums that I'm registered for, and mainly just lurk at the few times I do
visit. However, when I do feel I have something of worth to contribute, I usually do so.
...and you probably wouldn't want me to start posting what I would consider bad posts. :p
Quality over quantity, right?