Some bounty managers have been known to promote scam projects and I believe because they have users who rush to sign up, they keep being agents of scam project and not escrowing rewards.
More is that, the reasons bounty has been paying shit is because you rushing over it and they decide to list below, compare it with 2017 coins.
I believe some users are getting worried and fade up on lack of fulfilment of bounty promises at the end because the promises are not met as you either get scammed or the worth of your thousand units is = to a dollar ($1) at the end of many weeks.
When you work for months and dump total worth for $15 (rare case) if you get up to that, you have just paid for your data usage. What about your time? Inconveniences etc.
They take advantage of hunters that participated and not pay reward with different excuses which are :1. KYC introduced while it was not started from beginning:
Know your customer is actually not necessary in a decentralized setting, all you need is to guide yourself or company because decentralized system should guarantee freedom. Why then introduce it at the end, to prevent participants from receiving their labour. I believe most times, this is to push out because if they are genuine, they should state it clearly from beginning that KYC is a necessary factor to receive reward. Example is bubbalex, his bounty has been one of the most sincere type I have read, from beginning to end is the way it is done. To
time for listing, times and dates for distribution.
All information about the growth of the project in different SM channels, medium, Twitter, telegram. No KYC introduced at the beginning and to the end.
2.The excuses of launch of website, app, main net, sales , soft cap are all reason you should understand you are wasting your time especially when you get shit pay.
What you can do if you like the project and you are not sure of the promisesSave up to buy if you don't have money, you can wait for it when it is listed and dumped, you buy cheap.
If you have not checked this thread
https://bitcointalk.org/index.php?topic=5230885.msg53975958#msg53975958