You can see this from 2 sides... there are miners that have more or less for months stable profit... the problem is they just sold 200 boats of this miner... if hdac didnt fork and btc didnt decrease because of bch fork this could be a good deal but now were in a crappy position .... if this thing was stable and working for me in the start ... i had tons of issues getting this thing to work , once i managed to keep it online the profit was half after a few days
This is normal, and is not the responsibility of the manufacturer to resolve. You purchased this device with the understanding that it was not exclusive to you and that network hashrate increasing means profit decreasing. If you were not aware of this, then that is your own fault. The situation is the same and always has been the same, since the earliest days of mining - additional miners will share the profits, they do not create extra profits out of thin air.