Surprisingly, I find the in-game chat often dead. If not dead, people talking about some other game or randoms arguing about some nonsense as there is no moderation on it.
Compared to every other Nutaku game I've tried, I found this one actually to be the most easiest when starting out, mostly because you can level very easily early on which refills and STACKS ALL the AP you get from leveling, so people usually have like a load of AP til around Lv50ish, where leveling starts slowing down.