Yes, that problem definitely still exists, but since the content is already out there, I don't think it really makes a difference. There will always be people asking her for content because they’ve seen what has already been leaked.
If new content is shared but not scraped by other sites, the reach would be much smaller, given that these forums don't usually show up in search results, and even if they do, you need an account to access them.
It could be an issue if she decided to take action against the buyers, but as others have mentioned, she’s too lazy for that, it takes her months just to deliver the sets. There’s a reason she prefers selling sets over having a regular job.
It seems like if she didn't live with her parents, we’d already have better, accessible content. It gives the impression that the real problem for her isn't the existence of the content itself, but the risk of it reaching her parents. Taking action would risk exposing her.