> So for someone who's not paying attention, does anyone have an explanation of how they're allowed to do this? Many of these mixtapes are in a legal grey area

> So for someone who's not paying attention, does anyone have an explanation of how they're allowed to do this? Many of these mixtapes are in a legal grey area, technically copyright infringement but tolerated by the rights holders because of the promotional value. My feeling is that either archive.org are not aware of this content, or they are but will simply comply with any take down requests they receive.