We currently don't have this feature. @Deflator0677 would you like to sponsor this feature?

You didn't pay me for the time I spend to write several issues. If you want, you could pay me and I will use this money for this feature.

Nevertheless, I think it is security features, all Limesurvey instance could be abused.

We are going from the premise that admins are hand-picked and trustworthy. That is why we don't see this as a security issue. Every superadmin is responsible for their own application and how it is being used.
That being said, we are open source company, meaning that we provide most of our work for free to general public, you included. If anyone has an idea for a feature, we can work on it, but since we have limited man power, we rely on sponsoring of such new features. We appreciate you as a member of our open source community and your contributions in form of tickets you created!

I will be surprise if it is how Limesurvey is used in big company. The organisations I know open Limesurvey to their company users, even if they are trained, that means hundred of them, and users are not trustworthy. And even if they are trustworthy, they could in good faith sending a survey to thousands of email.

Is this feature is available in your public demo? Because if it is, that means even you didn't respect your premise...

Do you wait an abuse occurred on your platform to do something about this feature? I don't know allowing to disable it totally is the better way, it could be like to set a limit of recipient or something else.

My opinion : such situation must/can be fixed by plugin.

A lot of company allow sending a bunch of email by user with Survey create permission. When they don't want this : give less permission.

Then :

1. it's something needed by some company, but not a lot (it's the 1st feature request like this)
2. Each company can want something different (see smtpByUser for example)
3. Current plugins events can limit or disable email sent by some specific user : https://www.limesurvey.org/manual/BeforeEmail

About :

Is this feature is available in your public demo? Because if it is, that means even you didn't respect your premise...

DemoMode https://www.limesurvey.org/manual/Optional_settings/en#Security

demoMode: If this option is set to 'true' in config.php, then LimeSurvey will go into demo mode. The demo mode changes the following things:

• Disables admin user's details and password changing;
• Disables the upload of files on the template editor;
• Disables sending email invitations and reminders;
• Disables the creation of a database dump;
• Disables the ability to modify the following global settings: site name, default language, default HTML editor mode, XSS filter.

Thank you for your complete answer @DenisChenu, I understand the situation better.
I will look more closely at what is possible to do, I appreciate the tips. If you have more which could help me to write a plug-in to disable this feature for users, I am interested!

Just disable (for token related) : https://www.limesurvey.org/manual/BeforeSurveyEmail

1. Check current user https://github.com/LimeSurvey/LimeSurvey/blob/master/application/models/Permission.php#L782
2. If the current user is not a superadmin (for example)
3. event->set('error', true); event->set('message', "Email disable for you")

Something like this