also, FH, SB, and VB don't have a website devoted exclusively to D3FH, D3SB, or D3VB like wrestling has with d3wrestle.com. All the sports out of the traditional top 3 (football, basketball, baseball) that you have added on here have a competing website - D3kicks, laxpower, whatever the track websites are - and doesn't look like they been particularly successful in generating much discussion.
Track/cross country has generated less than 2000 posts in over 2 years, which comes out to an average of less than 2 posts a day. Lacrosse has generated 474 posts - with 421 coming from one single conference - in over 2 years, not even an average of one post a day. Women's soccer has drawn 526 posts in a little less than two years. Men's soccer has generated 2573 posts - with with 86% of them from just two regions - in just over 2 years for an average of about 3.5 posts a day.
If you want to generate discussion, then creating a board for a sport that already has a competing website looks like to me that it hasn't been a particularly successful formula (unless you consider less than one and up to 3.5 posts a day successful at creating much discussion). The D3 wrestling website already gets very, very little discussion on it's forums as it is, so that either indicates there is a very small market for discussion of D3 wrestling or that their model has failed.