Why are there so many Co-op servers?

Everytime I look around, I see mostly Co-op, hardly any match, CTF, etc. What is going on? I do know one thing that most people play the same stages over and over with character wads.

Many people have complained about this. I've got to agree though, there's way too many co-op servers. I wish there were more servers of other modes (Especially CTF.) that actually aren't modified and/or not full. Every time I make my own server though, I wait for nearly an hour and NO ONE comes. Yes, I did set it to advertise on internet.

http://mb.srb2.org/showthread.php?t=31881

Also, people don't know how to wasd + mouselook, so they just do Coop instead.

And Bbop, your ports arn't forwarded.

Yeah, we don't need 2 topics for this.