The Farm is still large but the good news is that most of the accounts left are of full member ranking and below and they will also be brought to book. To be honest, this is the most greedy bounty and signature campaign cheater i have ever come across.
One Exchange deposit address that was used shows that he/she/they was/were able to make over 30 BTC only in Bitcoin signature campaigns since 2017 minus Altcoin bounties.