[Neus]

My first thought is, 'why in the hell would extremely powerful monsters just magically appear in the overworld?' One or two random 'i appear in overworld and i'm gonna kill everything mwahahahahaha' might work, but this isn't your typical MMO.

My second thought is, 'either we'll have to see a balance for a fight that can host more than four players, or try to make the game able to handle numerous fights at once.' In fact, I don't think we should even touch 'raid bosses' when SL2's endgame offers little to begin with. (especially where challenges towards a party is concerned)

My third thought is, 'there's still going to be a lot of work making something that acts something like a raid boss, unless people just want a huge damage sponge that dishes out stupid amounts of damage with the occasional jacked-up rampage.'

TL;DRA raid boss isn't a bad idea, but it's going to take a lot of work to do, and I think we have much, MUCH bigger fish to fry before we start trying to make official raid bosses.

1) It's not really unbelievable to think that some monster is terrorizing the land somewhere, and honestly I do have a concept laying around that would fit this pretty well. But either way, this isn't really an important concern.

2) The way it worked in the discussion was, everyone fights an instance of the boss. Damage done to the boss decreases from the 'real' HP, which is tracked separately and is a very high number. Boss might get more powerful as it loses more and more HP.
2B) A bit of a separate topic but I think having a powerful boss to fight like this would be something challenging for a party, so your own statements contradict yourself a little bit. And if people want more challenging stuff, I'm fine with that and have a few things on my list geared towards that. But that's a different topic.
3) I'm not really interested in duplicating the 'raids' you see in other games. The word 'raid' in this instance, and I'm sure as it was intended by Fern, was simply 'a collective effort between more than one party'. No one was suggesting we should have a 3 hour dungeon tied to them.