One thing to remember was that the former MS was a privately owned server. In reality, it was totally separate from SRB2; and while it definitely fueled it, it was also under the jurisdiction of a select few. It's more like cutting off a benefit from a job since the business's economy requires it rather than chopping legs off.
The benefits of having a few different master servers:
1) It would actually be easier to find (relevant) games... CTF/Match hardcore players would host and be on the "Pro" server, casual Coop/Match players would host and be on the "fun" server, and unorthodox players would host and be on the "Open" server. If not, a "normal" and an "open" server would easily be enough to suit everyone.
We could ask on the generousness of, say, Oogaland to add an easy way to manage a small list of MSes on his MS launcher.
If we had a centralized list like I mentioned on my past reply, this would be easy to manage even for those who aren't so bright or are too scared to use command lines. We already expected to have n00blies magicially feel obligated go and read the obscurely placed rules to the MS anyways, so I'm assuming expecting them to go to the forums to look at a list isn't much harder. If anything, this will make the newbies more understanding of the concept of "Master Server" and how one has obligations to meet to if you use another's service.
2) They will be privately owned, but then we aren't expected to only have one limiting master server like before. Hosts can deal with their own rules, sure - but then someone who is banned could just hop on another friendlier one. This is actually a good thing - and there could always be a updated list of IPs of, say, total hackers for everyone to ban.
3) One's down? Just jump on another.
4) The upcoming rush of new people that will result due to SRB2ME will easily make this system more possible. People who want different experiences will go to their respective servers rather than causing Cue to commit suicide, and the system will sustain itself!
Hamachi is a redundant and ridiculous way of hosting games... It's MUCH more effort and and quite a bit more annoying than even setting up your own MS or using IP connect. Only the host actually needs the open ports, so why put everyone else through the suffering?
Oogaland developed a SRB2 executable some time ago that allowed people to host without opening ports - isn't that feature in SRB2ME now?
The whole point of IP games is to round up a bunch of people personally and then tell them your IP to join, not as a viable perma-solution. There is absolutely no reason to have a "list of IPs".
IP join is easy if you have the launcher... We need to make this kind of stuff obvious to everyone (launchers, tools, existence of rules, new MSes, etc) instead of blindly thinking that they should "know better" and selfishly dismiss those who don't.
As for a temporary solution? Tell EVERYONE you know who cares about SRB2 to switch to Bluewarrior's MS. Tell them how to update to it if you have to - at the rate this is going, this is going to be a collaboative effort, and therefore we better all be willing to work with each other to create a positive netgaming experience for all of us. If you don't feel so, then you really do not care.