Board Thread:General Discussion/@comment-27005187-20151224000346

http://yamikaneki1.deviantart.com/art/PL2-MMD-Tsuruya-Hair-Download-378002206

Probably because it was ripped from a game (PL2 is kinda famous japanese game) and is copyright secured. YanDev maybe dont want to get in problems because of this. he also got Cirno's hair from here http://len11999.deviantart.com/art/mmd-pl2-cino-s-hair-324765310

Kokona is also a MMD model, but unlike the PL2 rip, it is 3DCG rip, free for commercial use, so probably wont be removed:

Kokona's drills from http://mikumiku-salon.deviantart.com/art/3DCG-Drill-Hair-DL-320789308 