Switching almost half of the entire mining network to BCH around the fork for a few days, was definitly the biggest swap of hashpower in Bitcoin history, and it is evident that the largest manufacturer of asics, Bitmain, was involved in that manipulation in order to pump BCH, causing Bitcoin an overfilled mempool of unconfirmed transactions.

This gave us almost 4 weeks of dropping difficulty, awesome times for mining BTC, but as BCH fixed their mining algorithm now, I guess we are back on track, and this looks like this