It is worth in 2020, but for your main job and main income is not recommended to do at all. For every project they just give you below 100 bucks for every 3 months. This is really low compared to fixed jobs and in 2017 - 2018 it was really better and you could get more with just doing a single project, the difference is really insane.
I really agree with your statement. In fact, my earnings in weekly signature campaign is only for paying bills. I depends upon my trading for my daily income. 100 bucks is sometimes a drawing also. It is just printed in spreadsheet because a lot of bounties are scam. They just wanna fool hunters for their listing and prize pool but at the end, they won`t paid the bounty hunters. It is really bored to join bounties, specially if there is a restriction and little amount of pool. Unlike during 2017, bounty is the best way to earn money. the hype was over.