I was wondering if it might not be a bad idea for flat chest reform. The current ones could be left for the time being, but that a move to actual cup measurements could be formed.
The fact is there's a lot of variation within these different tags and going to a more specific route, such as cup sizes would be more accurate. Of course, this would be harder for unfamiliar users to do, but staying with flat_chest as well would also be fine. All I'm suggesting is a possible movement toward and promotion, not an swift eradication of the flat_chest, large_breast, and so forth tag. And then maybe long after if it catches on, move away from the flat_chest tag.
For instance, a cups and aa cups are both under the flat_chest tag. But aa_cup and a_cup would allow for a person to be even more specific if they were looking for washboard. There's surely a use for this in larger breast fans as well.
Just an idea from a forum newbie, I apologize if it is incredibly daft.
Updated by 葉月