Yeah, let me add more stars to the leve so I don't gain more SP than the capped amount it was at when it was hello kitty easymode level, right?
The SP you gain from leve mobs caps at a VERY low amount of stars, making it pointless to make it harder. You gain the same SP when they're mobs that die in 2 hits that you do when mobs are actually difficult. The combat/mob/difficulty/exp system is completely broken and needs revamped.