question for developer: where blockchain is stored on my comp?
Windows + R then type %appdata%\\micronotecoin
to dev: decrease payout please, 10 is pretty, 100 so high.

Agreed 100%
My rough estimate on a Single 1070 is that 100 coins is going 12+ hours.
A smaller payout would encourage some single GPU users (and even some CPU miners) to mine at least a few coins, and therefore distrubute the supply a bit more.