Originally Posted by spumer
This is not for extending slots. This is for more speed up checks. With this extension you can implement very efficient "reserved slot", name checker and more.
What I'm trying to say is that reserve slots only comes into play when server is full, but the way l4d2 is; I'm yet to see a server that is 32/32. As for name checker, you can do that without this extension as well.
Not saying its not well done, but just thinking about its practical usage.