You could before, but due to abuse of nothing but x5 servers, NoFaTe has removed all such servers and hosting any server with regardless of what XP modifier above 1 will result in your server being removed too. Also, if you spotted a server like that, you should report its name to the staff to have...

I see the server called Ultimate fun server or something like that, it has the EA logo on it and has no punkbuster. Does the experience gained in that server actually stay with your profile? And can I host this type of server myself? I have terrible internet so I get kicked from that server because ...