No, but even if this was the case... I've followed most of the TK17 scene, since even before Modsgarden, rose and fell.
He still made Custom poses, based on many many other default ones, as we all did. He doesn't have to give credit, when that person himself just modified what 3Dsexvilla gave you. To what extent, he would owe this person, is between him and this Kascha, but he's still done the most work as far as coming up with new and unique poses, since then.
Again no one comes close, cuz they all quit pretty much and he kept truckin'. The only one I remember, that preceeded NCM was Golddxp, and he did give credit to some of his poses, early on, but to reference them now is moot. They merely inspired, you can't really steal from each other: it's not even technically a LEGAL mod to being with. He gives credit where it's due, even admits who makes his models and such, so if this person wasn't given credit, he didn't feel they needed it.
There's a ton more like: Xalas (credits NCM all the time), MasterBlaster, Elgnid, Mastermind, Thunderbird64, Gravicapa or Zarking, but all those guys moved on. No need to credit every person who's ever made a pose man, it's redundant AF.