Some statistics from Monolith's list server:

Jazz Jackrabbit 2 List Server v1.01 of Feb 25 1999 at 18:12:23

Host name : 192.168.1.2
Host address : 192.168.1.2 port 10057
Up time : 17 Days, 18:57:42
BPS in/out : 10 / 0

Servers in list : 1
Mirrored servers : 0
List packet size : 22 Bytes

Lost servernet connections : 2486
Servernet connection attempts : 16695 ( 14% success)
Average servernet uptime : 0 Days, 0:16:18
Pings sent/received : 10501/5332

As you can see, it has a 17 day uptime. I don't know what kind of uptime logicware usually has, but that's not bad or a 'backup' server.

(Telnet on port 10055 to monolith.idlegames.com for this information and some more.)

iCeD's server (genotoxin.idlegames.com) is also mirrored when it's up, and Flea and Alberto also have list servers, but have problems mirroring for some reason. However, as you can see, there's not really any need for another list server. People just need to add monolith.idlegames.com to their registry (in HKey_Local_Machine\Software\Epic Megames\Jazz Jackrabbit 2\1.23\List Servers).