That's a lot of bounty that you got there, I can feel the waste of time that you rendered with those scam bounties.
I suppose some of these projects are still alive so I can see a reason for this thread.
Yes they are still alive and open, you can see on what are the complains from the last pages of those bounties.
As long as it isn't closed/locked, you can tell that it is active.
Now the scam bounty campaign is not rare. I understand and I'm very sympathetic to you.
Most of them are scams so if you don't research with due diligence, you will be ending up with the same list and probably build your own.