The first sign of red flag for a fail signature campaign: the bounty manager is inactive. If you sight them, better left it and stop wasting your time on it anymore. Too much risk for doing all the work and receiving nothing in the end.
unfortunately I already went through the sad situation of being active for 2 months in a bounty campaign and then I had to wait 4 months for payment, there were nightmare and irritating days and at the end of 4 months when it was just time to receive payment I see that there was a 500% reduction in the initial value, something shocking. Again I went to participate in another bounty campaign and this time I had the same bad luck but it was worse because I waited months and never received anything. this bounty campaign payment scheme is very wrong, i think people should demand that payments be in bitcoin or litecoin or some altcoin already established and with low transfer fee
Same here, I happen to participate in a bounty campaign that promised a delayed payment then after the deadline for payment came, the project extended the waiting period until they failed to release the payment for the bounty hunter.
For my long years of participating in a bounty campaign, I have seen several bounty managers that update their spreadsheet during the last week of the campaign. Most of them pay so I won't consider it as a red flag for scamming since I also experience an updated sheet and a very active manager but in the end, the campaign does not pay a single cent to its participant.
Actually, it will depend on who the bounty manager is.
there are Bounty managers that always update the spreadsheet regularly every week.
There are some bounty managers that update the spreadsheet after several weeks or in the last weeks.
And there are also some bounty managers that update the spreadsheet after the bounty ended.
Each has its strength and weaknesses. But, as long as the BM is still active, in the forum or even in the social media or telegram group, I think that it is still normal. but, if there is no updated news, not active for a long time, and no clear information even after some week's bounty ended, the BM may get red flag or scam accusation.
I wouldn't consider that as a strength and weakness, bounty manager's failure to update a sheet every cut-off is laziness at its best. The campaign must be updated every after weekly cut-off to ensure the quality of the campaign.