Eu-server-state: More and more eastern europeans lagging around, and more and more americans high-pinging the servers to death. This plus probably not enough cpu-power, which was most probably critically calculated before, left on the machines their servers are running (reading to many servers/machine) following the meltdown-patches (network-traffic also is a syscall-problem…).
But really, I doubt someone on Special D. will be able and or willing to fix it for us. Seeing the noodle-business slowly going down in asia while they start their next round of cashing-in probably should tell us their new investor wants short-time money and not long-term customer satisfaction. On the other side, things could be going on as usual and I am seeing ghost where there are none, so the servers will be fixed … SOOON … … …
On the other question, yes there are nethacks, and quite a few of them, actually. The most actual ones for professional competetive games change the network traffic (bullets shot, damage not… comming in, and so on) on an extra machine, so no chance to detect it with the average shitty hit-detection, prediction and lag-compensation stuff going on nowadays.
The more standard nethack either is to limit your bandwith or simply downloading stuff to fill-up your connection, or use netswitches (in software or by soldering a switch in your network-cable, to lag (not getting hit, because the hitbox starts partying) while running away/reloading/whatever).
And really, with people from around the world playing on a server whose netengine is known to be quite fragile towards to many players with lagging or packetlossing connections, (pinglimit alone is a nono because “not enough population”), the servers on their own beeing shitty, and the common nethackers on top of this, what do you expect. And yes, there are long/high-ping-connections which are stable, but the average player from around the globe… yes… ehm no.