I would also like to see HNMs in this game. I do agree that cutting down the respawn time and windows would be a good idea. Or even the random pop idea throughout an entire zone (similar to Sandworm and Dark Ixion) would be an awesome idea, as someone else said. It would make it so everyone has a chance at killing said nm and receiving whatever items it drops. Just please make it a challenge, not a time sink.

Also someone else had the idea of maybe when you find that HNM your group gets teleported to an instanced zone. I think that is an awesome idea. If this is implemented though, I think if they make the HNM pop at a random time in any zone, everyone who is in the party or alliance no matter where they are in the game should get ported to said zone, but I think before we are ported it should ask us "would you like to be teleported to this zone?". That way you don't have to wait 30 mins for everyone to gather together and if you choose to not participate you have a choice. This way you still have that competition of finding the HNM if multiple ls's are out looking for it but do not have to worry about someone stealing the hate due to how the claim system is.