I guess each to their own.
Me personally I'm extremely happy, willing & proud to share anything I create.
Maybe it's my advertising background 🤔
You get to put your name/avatar/icon/logo on your work & then share it with the world.
No point in going to so much energy, effort, time & expertise if you can't/don't/won't flaunt it to the rest of world 😂🤣
No one can appreciate it your work, skills & abilities if you hide it away from the world.
Think of all the loyal followers, adoring fans & besotted groupies that they are missing out on 💋❤️