Best threads in blackhatworld that helped you?

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BHW is huuuuuuuuge. I saw few interesting threads over here but I know there's much more, maybe some gold nuggets in comments.

What threads did help you? It doesn't matter the category.

For example, I really liked this: https://www.blackhatworld.com/seo/my-aliexpress-dropshipping-journey.776532/