So, they paid:
twitter for 0.37% of participants
facebook for 1.62% of participants
All the rest are bots. Hash Rush waited for several months, watching with pleasure how the "bots" work for them, and only after that they opened the truth to us that we are all bots and do not deserve to pay for our work.
It's very simple: how can you blame that the signer is a bot? The account on BCT leaves messages, displays of the signature are. Therefore, it is easier to declare bots of participants of social networks. Similarly, it is difficult to declare bots translators or authors of blogs.