Demon,
One of the things that IT professionals do that helps protect the overall "health" of their network is to divide tasks up and assign them to different machines on the network. This in a way creates the same effect as having all the tasks on 1 machine and to users it's identical.
However, if you have most or all of your tasks on the same machine, all it takes is a tiny hardware failure to wipe out your entire network. With the workload seperated, only the affected system's tasks stop and not the entire network. This is true on IRC networks as well.
Most of the modules you requested are 1 already handled sufficiently or are features in other programs. It's wise to run several programs instead of trying to get them all into services. You should run ircds, bopm like applications, statistical services, spam detection, channel and operator services ... etc .. on as many different machines as possible. Cramming even most of those tasks on one machine will make you very unhappy if that machine should fail. You want all those services on seperate computers. You WANT to have several applications and you WANT to have them spread across several machines. Not all crammed into 1 single Uber-application.
Let the ircd handle user connections, let Services handle nick and channel registrations, let the proxy scanner handle the proxies and let NeoStats handle it's part.
Anope is one of the most popular IRC Services packages out there. Anope is popular for a reason, that reason is it's rock solid, well maintained and it does it's job and ONLY it's job and does it well! That Job is handling Nick/Channel management as well as some IRCop networking tools to enhance the ircd's ability to manage users. The IRCOp tools are there because as you like to point out, not all ircds have a built in global banning system, nor do all ircds have the ability to limit the number of clones connecting. Anope is not a spam detector, it's not even really supposed to be a bot services, but aleast with BotServ, channel management is enhanced and augmented. Anope is not an emulator of other IRC applications, it's not a love/lame/spam/secure/war/text/fartserv.
i think you support other 10-15 ircds except Unreal.. so here is not again the Unreal thing..
YOU use Unreal, therefore use it's spam filter. The rest of the IRC community can speak for it's self and doesn't need a self appointed spokesperson requesting features/modules for them. You've said more than once" I don't use it, but others might .." Good! let the "others" request it.