I read your post, then gave it a quick skim read to find a question:
"Why is mod-ing important?"
I'll assume mod-ing means moderating.
Lots of forums all over the place have different standards and rules and approaches. A cluster of things usually. The aim is to reduce spam. Moderating is just one of the ways we try to do this. Since machine spam detection is not perfect.
It's just a tool to reduce spam.