Great catch. So with the help of wallet explorer, we can easily find the alt and bounty cheater.  

BTW I can add something more to be sure about these participants are alt or handling by one person.

1. Magkirap Last Active:   Today at 04:08:54 AM
2. Blackdeath Today at 03:55:13 AM
3. julius caesar Today at 04:14:19 AM
4. White Christmas Today at 04:01:12 AM
5. agentx44 Today at 04:05:20 AM
6. airdnasxela Today at 04:20:14 AM
7. ekans45 Today at 04:17:51 AM
8. Gumpfire Today at 04:06:15 AM

These accounts' last active time are very similar. And that was in between 30 minutes. It's also very suspicious.