I beg to disagree, Julerz escrowed bounty tokens for bounty hunters and all bounty hunters have received their tokens, some managers are escrowing the bounty token which is good, but if the team is trusted and they show good will it's ok not to do escrow especially if the bounty manager is part of the team, like what Oikos has done.
Both are good bounty manager who already escrow funds for bounty hunters, but for julerz many of bounty managed by him fail and now he stops as manager, different with bountydetective almost all campaign already listed in the market and succeeded, so for me bountydetective better than julerz.
Yes Oikos is trusted but don't forget not all project will do the same, so escrow will avoid disappointment