Players of your game creating content for it is not exploitation. It's just how it works in the gaming world. When I was a kid I spent time creating a minecraft mod that hundreds of people used. Did Mojang or anyone else ever pay me? No. I did it because I wanted to.

The way they're paying kids and what they're telling them is a big part of the problem... they're pushing a lot of the problematic game development industry onto kids that are sometimes as young as 10.

If this was free content creation when kids want to do it, then it would be an entirely different story.

Mojang was likely not selling you on making a mod with promises of making money though. Roblox did that, maybe they still do it.

Please review the video. The problem is not ‘players creating content’.