Everybody still cares, so you should get them while they last. Nobody who cares has noticed and maybe won't notice for a while, or it won't be in the budget to go after IA after just hitting them. The only protection these probably have is that they are recordings of real bands, and the bands that later became corporate darlings are in the minority - and labels like Touch & Go and other Midwest indies not only probably don't exist anymore and are not interested, but also don't control any of the publishing for the people who put out albums on their labels.

But the ones playing the music are all very old people now, and many of them have likely sold their publishing to the our blob overlords for a pittance. If massive multinational media corporations can make it difficult to figure out what they might have a claim to, it will end up easier to take the whole thing down. They attacked IA last time based on wax cylinders.

The reason orgs like the RIAA exist is to take PR hits for the industry; they will eventually demand they be taken down and probably make claims based on the length of time they were hosted. Get what you want while you can, although if you're a Millennial/Gen Z hipster you won't know any of it because it wasn't marketed to you (or anyone, it was just music, we enjoyed it.)

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edit: Looking through the list, I remembered how awful Chicago shows at the big clubs were, how Metro banned punk rock, and how I only ever went to those places to see touring bands that managed to get an opening spot for some A&R industry plant. Most of these are not good, and tons of them have all of their publishing owned by multinationals. It's the kind of selection you'd expect from somebody who thought that Bleach-era Nirvana was just alright and stalked Pavement.

Was happy to see a bunch of Fireside Bowl shows, but it looks like he dodged the good ones. This is almost pure "indy." I bet anybody could still find 100 that they'd like though so I don't want to seem too negative. This is mostly Gen X mainstream suburban hipster music.