Thanks for the clarification once again, Deku.
Based on this, I think it's the Mafia's goal to nightkill a Dreamer and send us back to the real world to prevent us from reaching DS3. Otherwise, we would reach it quite easily. Some things come to my mind:
1) We could
No Lynch and keep moving until we all reach DS3. Obviously, the problem with this is that if the Dreamer comes out or if the Mafia manage to hit a Dreamer during the night, we all get sent back to the real world.
2) We could
Lynch and nominate (not one, but) two people to suicide and join the lynchee. We try to find other scum in our DS group until results are announced. If DS hits scum, we vote for a No Lynch. If DS hits town, we have the Dreamer reveal themselves and commit suicide, sending us all back to the real world to discuss what happened and why. This is the plan I'm most comfortable with, obviously.
Addressing this:
So maybe it would be best for the dreamer to suicide, because if we send scum back and just have a few people suicide, then the other scum could suicide as well. So it'll probably be better to keep everyone together so we at least know where all the scum are, instead of being on different levels looking for scum that might not even be there.
The "stick together" mindset does sound safe (albeit overrated, but that's just imo). However, I don't think the GM would keep all the Day results exclusive to the discussions that brought forth them (i.e. Only the players in the real world know the lynchee's alignment, so players in a DS would have to suicide to hear the results. That doesn't make much sense in my mind.).
3) We could have the Dreamer
Suicide right now send us back to the real world. I'm not comfortable with this option because it seems like something the Mafia would want. Think about it: the discussion in the real world occurs, and we end up voting a Townie. Then afterwards, Mafia nightkills and hit another Townie. That's two deaths already. "There's always the risk of that happening, anyway, blah blah blah." There's only two scum left right now, and I'd imagine they're in quite the bind due to losing a scumbud right on D1. We talked about inactives being scum due to the Storma lynch (including me, of course), but in the chance that one of the scum is actually a player active in Day discussions, they would want to go to the real world and try to lynch a Townie from there. Mafia do not benefit much from entering Dreamscapes because their goal isn't to make it to DS3:
it's to reach parity with Town.
Inception Rule #1 said:
It is the goal of the town to either kill all the mafia or reach the third dreamscape. It is the goal of the mafia to reach parity before either of those goals are met.
Tbh, it's still a bit stacked against Mafia imo, even with the ability to permakill players in Dreamscapes.
So yeah, these are the three options that come to my mind.