We don't have any permission to put or update a team leader photo
because nobody is a team leader.
this is meaningless, you need to have a leader in the team, it's not about being the guy knows everything, but having a person who coordinates all the team's activities, how can you be a team without a leader? How would you coordinate your activities if you do not have a leader in your team?
All were volunteers but with no
real identity like Satoshi Nakamoto.
do not make this comparison, the times of satoshi are very old and you know that many people who are contributing to the code are not anonymous people. These days, the success of projects is directly linked to the creator of the project, that is, if the creator has a good reputation or a very good image, then his project has many chances of success if the creator of the project is anonymous but has good ideas, the project has many chances of being a big failure. because people want to have guarantees that who is behind the project is someone very competent.
Besides, we never seen also the Real Photo of Satoshi Nakamoto.
But you can see who are the people who make bitcoin work well
photo or imaginary photo don't make any difference and that will not
qualifies Bitcoin as a scam.
Hmmm, there's something you're forgetting, do this:

Nickname: blue_sky11
This is acceptable
But this:

This is unacceptable
this guy exists in real life, has a name and is not part of your project and did not give you permission to use his photo, people may think that the guy is the leader of your project. Do you realize that?