bitcointalkでも問題提起されてるね。

CAUTION!!!!!
Did founders snatch premine?

Jan, 11
Premine: 1.849% 1.849 % (2)
(2) for Bounty, Faucet

Now
https://github.com/koto-dev/wiki/blob/master/kotoprojectFAQs.md
Usage of premines

All the premined balances at this moment belong to the personal assets of the founder, koto.cash,
so that the uses of the balances such as funds for faucets, exchange, developing expenses, and so on in the future are decided by own decision of koto.cash.
As announced, around 2.10 M Koto of all the premined 3.92 M Koto was used for bounties to the developers by 2018-02-05.

Note that the description, "As announced, around 2.10 M Koto of all the premined 3.92 M Koto was used for bounties to the developers by 2018-02-05", is not true strictly.

We knew that founders threw Koto on the original Japanese forum.
http://askmona.org/7853?000 (Japanese)

Founders have never proved they use 2.10 M Koto for bounties.