A youtube channel has been stealing longplay videos

Last updated on 3 years ago
The channel is here: https://www.youtube.com/channel/UCQ50iJFMoh4XOIl5V8LmHdQ
That user has been reuploading longplay videos from this site seemingly without permission and making money off from your works. (ads play before actual content, that's how you tell the account is partnered)

You can tell videos are from http://www.longplays.org/ by just reading video description. I think I should tell people here because they are still reuploading now. (last upload was only an hour ago from the time I made this topic)
To stop it, individual players need to claim copyright. I can't do it because I don't have any videos.
He's now uploading trimmed down versions of our stuff. However the stolen full length longplays are still there.
account still exists but all longplays are gone now.
You can view all discussion threads in this forum.
You cannot start a new discussion thread in this forum.
You cannot reply in this discussion thread.
You cannot start on a poll in this forum.
You cannot upload attachments in this forum.
You cannot download attachments in this forum.