I’d be surprised if the data was just content. Memes and texts aren’t particularly valuable.

However, data that can be used for tracking/developing user profiles such as what they’re subscribed to, how active they are, and how they all link to one another is especially useful for conpetetitors and marketers. Plus any personal data such as emails and profiles. I wouldn’t be surprised if you managed to get a huge amount of data under 80gb if it’s just text (think how big a 80gb excel sheet would be)