I'm just guessing but it might have to do with the concerns raised by the first commenter in the reply by textfiles (Jason Scott) in that reddit thread
tl;dr seems to be they received a massive (71,000 tapes) archive that hasn't seen any activity or communication in 7 years.
If you read further in the thread, you'll also find other concerns about Jason's reliability
Even mundane recordings become interesting to me once enough time passes. I've watched a bunch of Nickelodeon/Cartoon Network programming from early days and to be honest, the commercials are more interesting than the cartoons because they so perfectly capture where we were as a society -- toys starting to integrate new technology, sugary cereals being touted as part of daily breakfast, etc. Fascinating stuff.