You're right. The problem with bounty campaign is that there is a possibility that the bounty you are joining is a scam and it happens to me. That is why I try to analyze if the bounty is a legit one but sometimes, you cannot really predict it, that is why I also do short trading. Even though it is not that profitable compare to long trading, at least I am earning.
This same scam also happens to me too
Now I am very careful about every single thing it's really hurt when you are doing everything sincerely and it gone on the happen of scam or spam