Connection to the Nitty Gritty Dirt Band
Superfan & Archivist: Dylan Hupp posts a lot of high-quality or restored live videos of the band (e.g., performances from The Midnight Special, Nashville Now, Crook and Chase, Austin City Limits, etc.)
"Part of their history": In his own posts, he refers to himself as part of the band's history and claims friendships/connections with band members and associates like Bob Koenig (who sometimes credits videos), John McEuen, Jeff Hanna, Jimmie Fadden, and Bob Carpenter. He has received gifts like Nitty Gritty Dirt Band VHS tapes.
This appears to be more fan/collector-level involvement rather than him being an official member or performer with the band. He enthusiastically shares their music and seems well-connected in fan circles.