I agree with you, but the way this forum is designed by the creators of simplemachinesforum is that you have different boards for different areas. A collection of boards are then categorised into categories but here there is no point in the different categories.
For example, the category for blogs only has one board in it which renders the category useless. Same applies for the Where to buy category, though I can understand the site owners wanting to highlight this area.
Its a trivial matter, but realistically there is only the need for 2 or 3 categories here not the 7 that we have.
The only reason I suggested this was if things are a tighter community then it well help things grow while the forum is still in its first few months. I suspect many people might look at category names and not bother browsing them based entirely on their name, where as if these were part of one category, they might.