There are a number of ways to do this as
@MisterF mentions above follow people you find interesting and create your own feed visible here
https://www.blackhatworld.com/account/news-feed
Follow threads and see a feed of them here -
https://www.blackhatworld.com/watched/threads
Or
Focus only on the forums you're interested and watch them here
https://www.blackhatworld.com/watched/forums
These (and more) are all visible under your account
https://www.blackhatworld.com/account/contact-details
You can watch any thread by simply hitting the "watch thread" button at the top of the first post. Please note if you contribute to the thread you're automatically added to watching it and will receive notifications the next time it's posted on.
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You can watch any forum in the same way - visit the route of the forum, for example,
https://www.blackhatworld.com/forums/seo-link-building.43/ and hit the watch forum button again top of the forum opposite the page numbers listing. Useful if you want to be alerted when there is a new service added to the marketplace for example.
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If you're only interested in following specific users then click on the follow button - (if you're already following them it will show as "UnFollow").
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Combine these for a more focussed BHW targeted to your interests. But don't forget to stick your head above