Yeah, I play Rachel now. Playing Kokoro makes me too sad.
I'm not dropping her yet, even with the Nerf Comet.
Yeah, I really can't find any effective way to play her so far. Her bounds aren't that useful (how often are you going to hit them with 236P on CH or the last P in 4PPPP?). 8P6P is no longer scary/neutral. Her BT stun game was nerfed to shit (now you can just SE and avoid 3/4 options). Heichu throw options were reduced, 1T gone, 33P NH gone. The only thing I have left is my 66P+K.
If these nerfs didn't majorly affect how you play her, I honestly question your Kokoro in 5.
4PPP is only a NC on NH. In stun, you can counter all three at any time. Of course, it comes out reasonably fast, but the threat of being countered is there.
The other problem she has is that the majority of her good stuns are high (jab, 46P and 9P). Mid wise, only 33P and the second P of 236P+K. Everything else is SEable to avoid launchers/CB. 66P+K still offers her pseudo though, thank god.