Of course school is a factor, I know that very well, it's not like my forum is the only one that has decreased in activity. XD
I don't think the question is such a bad question as long as you word it right. I mean "Who the hell are you son of a---" is more offensive than "May I ask for your name?" or just plain "what's your name?" (with a nice tone).
Anyway
- Mainsite, many forums don't have one. Simply the existence is something and it does have some content contrary to what people think. It also has some unique content (like the hacking, sheetmusic, mugen, & video sections, and if I weren't busy I'd add more)
- Unique member database. Some people here you won't see active on other forums and if they are they come from various different forums (or vice-versa, they started here and THEN joined other forums)
- Active forum that has been around for a long time-- 40,000+ posts ATM, a few hundred members, there's something for you.
- Shoutbox-- not all forums have these.
- Hacking stuff, which is quite an influence and a good way to get members really
- A lot of time put into adding various features and making skins, I'm not using most of the default sections
- Various things to discuss, not limited to Fire Emblem, while still representing Fire Emblem-- missing some aspects of this like debating, tiers, and other more "intense" discussion (for lack of a better phrase), which is why places like SF are more successful (one of the reasons, anyway)
- Good GFX, if a site doesn't have good graphics then people aren't going to be so interested.
- Unique name. Using names that have already been used before or stealing them is bleh. Like "Fire Emblem World" or "Fire Emblem Online". Just for example.
- Forum hack led by me. That's incentive to stay and post a bit.
- Member icons and "levels", also incentive to post.
- Friendly members who are welcoming and like to have fun like everyone else
- Rules and staff are not as strict as most others, despite what people think. I've let a LOT of things go that I probably shouldn't have. Also, because during our peak of activity we're a moderate community, this means we are not flooded with quantity of members where you don't know everyone and it's confusing and you lose a little bit of your 'individuality'-- On GameFAQs, Smashboards, or some other major forum, it's hard to make yourself important or anything. You're just another average member going there for the sole purpose of discussion about video games (or some specific game), with exceptions. I don't know if I got this point down very well, it's quite hard to explain and grasp.
I'd say more but I'm in a bit of a rush.
I have to go in say, 30 minutes.
If they have a computer at the hotel, expect me to use that, otherwise it is DS spam time!

Later~!