I also was in the Bitvest campaign, I never had an issue with Cryptobrainboss being the manager, nor with payments being delayed to be honest. However, the payment was then further reduced, in conjunction with payments being delayed, only handled with a petty bonus to justify for the wait, wasn't enough for me. I believe that the payments will be handled eventually, however, I don't think such delays are professional.
P.S, I have one week's payment pending, nothing I'm really looking forward to, but I'd like to have it eventually.
well I'm still stock in this campaign

But the manager update that if this campaign did not pay for the 10th week He'll gonna pause the campaign in which i think best way to warn the owner about the delays each time, it may also trigger Him to let escrow to the manager as brainboss is a trusted account in this forum since in previous He lets the former manager to Hold and pay the participants.
I was a participant in Bitvest campaign for over a year, yes there were delays on two campaigns but participants were compensated with a bonus
and Lightlord always drop by in the campaign thread to assure participants that they will receive their payment, Lightlord's last post on Bitvest and 777 Coin campaign was August 16, 2021, that's almost two months and his last log in here in Bitcointalk was 10 days ago, something is not right here, and only Lightlord's post and settling signature participant's campaign payment will clear doubts on the state of the campaign.