There are various kind of old crypto projects that has no team but still they are among the best projects today, I believe this happened because many old projects followed the footstep of Bitcoin, bitcoin would have been in tougher situations if the team or ceo is public I believe but today it's a complete different story or should I say experience? Since the birth of ICO we've seen tons of scam projects that aren't scared of revealing their faces even when they knew they are going to exit scam on investors fund, so for me hidden team members or not still doesn't make a difference..
I believe to you it doesn't make a big difference but to the general public most investors before they invest into certain project or whatever they will want to know the person behind the scene not just for the scams that will probably involve but also the competency of the team members so can have a better Judge of whether is this project worth to throw money into.