Put forth some effort into the server at least, all it is is slate; it looks like something that would be hosted back in v16.
This is a fortwars. you build a fort and kill people, you dont get points for having the prettiest base, but yes i will build a spawn
No, but if you want your server to actually be appealing you want people to put effort, which they will not do unless you do it as well. If you have ever been to one of my Fort Wars you would notice many nice builds that had any effort put in, not just a fence and a wall that took 2 minutes.

(Credit: cblock360)
Like this is one of the builds that was on my server, plenty of effort was put fourth for this thing.

(Credit: Me) I put some effort into this base, overall took me about 3 hours. (Note it's an underground bunker)
Either way my point is, put some effort into your own server (like terrain) and in turn other people will build things that are really nice.
Also i'm not trying to bash your server or anything, i'm just trying to give constructive criticism.