Just a plus which had already been mentioned in a probably long winded argument.
If it is implemented, you can be sure that it will be balanced, as opposed to some of the mods. Also, you can be assured of the high quality of the parts of well!
And a minus...
I think that this is one of those finicky things that kind of would be added on as the game neared completion. Takes lots of time and doesn't add a new dimension to the game-play which has seemed to be the trend over the past updates. IMO, make your suggestions. While they might not be implemented, you can be assured that whatever comes out of the dev-oven will be fantastic and delicious. And it will also include frosting and sprinkles.