This is 100+ lots on a single trade (see screenshot). Notice the time stamps, it is one trade, where @patrader is adding to his position as it is going in his direction.
By adding to winning positions you are sizing up on your winners. He is adding 20 lots each time & 10 on the last entry.
If you notice the pnl, you will see that the first losing trade today was cut fast & not added to. So, it was a small loser. And the winning trade was sized up.
2. Also, the first time you try to increase your lot size you may lose. Then go back to the previous lot size, build up the profit, and in a few days scale it up again. You will likely win the second time on a higher size.