Hello ATB Coin report of getstackinginfo comand show only that the wallet is in stacking mode nothing else,
this is not enought :-)

You tell as that currently new block generates on every 2,5 minutes :-) (is this mean that on every 2.5 minutes some miner receive coins for mining) ?
24 hours x 60 minutes = 1440 blocks
1440 /2.5 = 576 blocks per 24 hours
Mining from 15.09.2017  = about 11 days mining.
11 x 576 blocks = 6336 blocks if this is equal to new mined coins
it is mean that 6336 times some "random" address is hit ant it receive coins
Your investors are : about 9000 You show this number in the site :-)