There's no such thing as truly exclusive subtitles – most are sourced from:
If someone is selling "exclusive" subs for a public release, be cautious – they're likely just repackaging free ones.
This is the key differentiator. Shaanig is not a generic uploader; it is a respected pseudonym in the private torrent and scene-release community, known for:
Unlike "HDTV" rips that originate from television broadcasts, the BluRay tag in this filename signifies the subtitles were ripped directly from the commercial Blu-ray disc.
Buy the Game of Thrones: The Complete Fourth Season Blu-Ray box set.
The fact that users are still typing gameofthronesseason4720pblurayx264shaanig subtitles exclusive years after the show ended tells us something important. These are not casual streamers. These are archivists. They are building personal offline media servers (Plex, Jellyfin, Emby) and want the most efficient, error-free, sub-titled version that will survive disk crashes and format wars.
This is the critical source marker. A "BluRay" rip does not come from a compressed broadcast stream (WEB-DL) or a TV capture (HDTV). It is sourced directly from the retail Blu-ray disc. That means: