Apparently honeygain's KYC wasn't good enough. They allowed some botnets to use their android implementation.

1.3 million of their "ethically sourced" endpoints were not ethically sourced and basically came hidden on an android device. YIKES oxylabs & honeygain

https://cloud.google.com/blog/topics/threat-intelligence/shutting-the-door-on-the-xcpe-botnet

That also explains why many users are unable to see earnings in honeygain nowadays. Their communciation has been terrible as well. Instead of acknowledging their mistake publicly in a post on their website, they decided to take down legitimate partners and legitimate users.

I recommend everyone to leave honeygain. They have stopped replying, shutting down SDK accounts even (e.g. proper business partners) and users have been reporting in their own subreddit that earnings are not showing up.