Hello! Im here again for some advices maybe. I am quite medium-big contributor on microstock world, and when other agencies are somewhat +/- stable on income, bigstock keep going down really big for past two years. We upload to SS and it copy portfolio to Bigstock, however income been growing big from 2013 - 2014. starting in summer 2014 it goes only down. Maybe i missed some big changes ?

I can't speak for everyone, but same for me.  I have about 3,800 assets on BigStock and I get fewer sales month over month.  I am lucky to make $60 a month whereas I was making $200 a month some time ago.  A lot has to do with image growth, too, but BigStock has been on a decline after about five years. The last five have been on a cyclic downward trend. I don't even check my balance but every few months. 

yea, my sale are slowing down on bigstock as well

Me too ...

Same here

Files reviewed in minutes now (seconds sometimes...)
But sales regularly dropping.