Personally I would like to see the cap on total amount of vanilla AND antifreeze earned together.

IE you are capped at 75 (or any other arbitrary number) combination of vanilla and antifreeze scoops a week. That way non-raiding people not in klans can compete with brainfreeze and good omens without those klans getting as much of a benefit from gambling scoops.

There needs to be some kind of balance between people in raiding klans and people not. Limiting antifreeze alone is only helping raiding klans, which has not increased the amount of interest in raiding but decreased the amount of participation in dom IMO.