what I often encounter is that a bounty project manager who uses a beginner account can be the admin of the project itself and can also be a new manager using his personal account. for me it doesn't matter, in a project the most important thing is how the manager's performance is in managing the project and the quality of the project itself.
The reason why people don't trust newcomers is not whether the Manager will be effective or not. This is for another reason. If the account has been on the forum for a long time, then it values its reputation and will not deceive other users. A newbie has nothing to lose, and the Manager working with a newbie's account can deceive other people.