Agreed, its like a new level of scam and it happened in a few months ago when airdrop campaign was hot. There are a lots of them asking for donation for 0,1 or 0,01 eth the reason is simple to filter multiple account however i believe if there are multiple account joining a campaign then that is their problem to filter it out and they must already know how to handle it before asking us to help them and for the record 0,1 eth is still a lot for just filtering an account and imagine if there are 1k people or more donate to them. Its free money
By the way, when you mention certain "someone" just called you from that bounty then is it the manager handling the bounty? Or its just a certain nobody?