Most projects on wikitree do 'not' want to manage profiles unless there have been issues with Last Name or confusion of profiles related to it, which would probably entail the PPP Project Protection to be added to the profile.
If someone requests a profile to be managed by the Project, they normally would request it to the Project or in G2G, with the reasons why it should be done. Then the project would add the Project Box and Project Account to the profile, 'if' they determined that they should 'help' manage or 'protect' it.
I copied the Mission because the initial question was about a certain time period, which I did not see on the Project page.