The right to monetize gameplay comes from the publisher's content policy, a revocable license, not from copyright law. The music under a stream is covered by the platform's performance license while it is live and by no synchronization license once it is a VOD, and the editor who cut a video owns the cut unless a signed writing says otherwise. Most channels rest on all three, and none is written down.
Disclosure rules bind the creator personally. Under the FTC's Endorsement Guides, revised in 2023, a paid mention is disclosed in the video itself rather than in the caption and repeated through a live stream, with the endorser liable alongside the brand. In Illinois since July 2024 a creator who features a child under sixteen in monetized content must hold a share of gross earnings in trust for the child until eighteen, which the child can enforce.
We act for creators and for the platforms and managers across the table from them, with one method: read what has already been signed, register the name and the original assets, and price the audience in terms that carry into the next renewal.