I see this trend in several projects. they do not want to open the face of the members of their team for quite a long time. there may be important reasons for this. however, I think,b that this is not correct. participants and those, who invest in the project must know, whom they are interacting with.
its just an alibi, There's no concrete reason for them to wait for their platform before disclosing their team information. Its a basic requirements for any crypto project to make their team transparent from the very beginning of their platform.