This is a request I posted a long time ago on the HA board. I still think it's a good idea, and zex's feature request reminded me of it.
Marking unhighscorable rooms should be part of the HA process. The HAs should be able to see which rooms the architect plans to mark unhighscorable, and suggest/require changes before the hold is promoted. Then, when the hold is promoted, those rooms start out unhighscorable. If another room needs to be added to the list, that can still be done after promotion (example: we didn't know if
Lunchbreak Special : Inside the Dungeon : 3 South, 5 West was possible, but it was left highscorable just in case, and sure enough... Rabscuttle eventually did it!).
Benefits:
1. Architects are human and sometimes they make mistakes. No matter what the task, it always helps to have it checked by another pair of eyes. The majority of HAs are people who play for highscores, and will ask the architect not to mark rooms that can be optimized.
2. Some new architects without CaravelNet don't understand the highscore system and don't understand why some rooms need to be marked. For example
RePuZla : Sign of Choras : Entrance was on people's missing highscore lists forever, until we finally asked Schik to mark it unhighscorable.
3. Currently, when a hold is promoted, there's a teeny window of time between promotion (when every room is highscorable) and when the architect gets there to mark some rooms unscorable. An example is
Wolly Olly and the Adder : Meeting Wolly and Olly : Entrance, where only Dischorran and Rabscuttle have scores. Larry marked that room unhighscorable after that and nobody else can get a score for that room. If we marked unhighscorable rooms during the HA process, there wouldn't be that teeny window of time.