Dunno, i wanted pplz to enjoy wat i enjoy on my forums, n me being admin is cool i guess, i first drew out all my ideas n site on paper then started createing it, it took 1 wk to set it up cause i don't hav a computer so i use the schools and bypass the filters!
Start with something that would be catchy. Sure may seem like any other forum, but make sure it is different by putting in the proper elements. if it's about animals, okay make it about animals, go for a theme that would suit the forum and user's taste. Then as it expands, add in little by little to keep it more entertaining.