This is rather interesting, taken from JazzTool about the games currently running.

UK.JazzJackrabbit.net
. | ctf | 1.21 | public | [2/7] | 375 ms | 20:17
Battle Server | battle | 1.21 | public | [6/16] | too far | 7:14:20

US.JazzJackrabbit.net
. | ctf | 1.21 | public | [2/7] | 375 ms | 20:17
Battle Server | battle | 1.21 | public | [6/16] | too far | 7:14:20

jazz.madskills.org
]A | battle | 1.erve | private | [135/... | too far | 9455: 3...
iT Test | battle | 1.21 | private | [4/32] | 275 ms | 1:29:14
Battle Server | battle | 1.21 | public | [6/16] | too far | 7:14:20
. | ctf | 1.21 | public | [2/7] | 375 ms | 20:17
CTF WELCOME | ctf | 1.21 | public | [4/32] | too far | 7:31:39
[iT] Server | ctf | 1.21 | private | [3/32] | too far | 8:21:11
| Hipserver | treasure | 1.|'21 | public | [0/0] | 330ms | 94745:...

jazz.nimrod-online.com
. | ctf | 1.21 | public | [2/7] | 375 ms | 20:17
Battle Server | battle | 1.21 | public | [6/16] | too far | 7:14:20

So it seems more people are switching to Monolith's listserver.
Might be associated with Nimrod's "Power Abusing" that the community is fed up. I dunno.

But it's interesting.