I honestly don't understand how any of what you were writing about, Titor, is related to this issue.
It's not the case of modders asking for donations/money for their work.
It's the case of Valve/Bethesda wanting to get a slice of the money the modders could/are getting and then creating the means to get them.
The example you posted would relate if Square-Enix would suddently want to get a slice of the profit from the artwork (since it would be a part of the setting they created) along with whoever owns RPC.
It's not the case of modders asking for donations/money for their work.
It's the case of Valve/Bethesda wanting to get a slice of the money the modders could/are getting and then creating the means to get them.
The example you posted would relate if Square-Enix would suddently want to get a slice of the profit from the artwork (since it would be a part of the setting they created) along with whoever owns RPC.