I never tried to catch anyone abusing bounty campaigns so the reason I found this farm was that multiple accounts post the same low quality style posts of 3 short lines and there is another one group which posts AI texts (they were spoiling the topics I was interested to talk that time). When you post something really pointless you can operate many accounts and if you hire someone to do the same work (which doesn't need to have any special skills) you can operate hundreds of accounts.
That is only possible if someone does not have any real life jobs. I mean, I can barely manage two hours a day to be on the forum and sometimes I reads the forum on my phone. Is it really worth spending time on those pointless bounty campaign and waste your working hours? If they focus on one account and can manage to get hired in one signature campaign, they can easily make some pocket money.
If they participate in a bounty campaign with hundreds of accounts and the campaign pay in shitcoins that never get listed on exchanges, then what is the point of participating on those bounty campaigns and wasting their time? They are stupid people with malfunctioned brain.