The forum will be fine.
Do you have it listed in Google, Bing, etc.?
I forget how you do it specifically, but when you start a website there are tag names that you enter so that your name comes up whenever someone is looking for tennis forums.
So, for other people to find your tennis forum you would list words like tennis forum, online tennis forum, tennis talk, etc.
Since you're the administrator, I'll sure you've seen it.
On topic:
That is the way that people are. If you were a troll people would have rushed over here.
I would've been here more, but I was taking a difficult class and didn't have time to figure out how to post correctly. I'm still trying to figure it out.