[Zachery]

Lets say you have a general forum,

So you have

Main (Category, main one)
Chit Chat (nonsense forum, whatever goes)
Popular Media (videos, flash, movies, etc)
Video Games ( consoles, pcs, etc)

Now, for some, you may further refine this, lets say in the video games
You could have subforums for each type of console, or perhaps each company for console makers Nintendo Sony Microsoft. Instead here we have a category, now you can also add tags.

Having both offers users who arnt quiet up to par on what tags are and how they work, and anyone who cant be bothered doesnt have to learn them.

The tags would show up under the topic name,

For example, a game like Mega Man X Command mission appeard on both the PS2 and the GAmeCube

So in the category of Video Games, you've got

MMX Command Mission help!
PS2 NGC

I would imagine there are differnt types of robotics and possibly these could be seperated over the board topics, then refined via tags.