If you read the article linked you will see that:
When asked about the post, the company initially denied that the information was legitimate, calling it a “misleading claim” in a statement to Recorded Future News.
and then:
A researcher approached Recorded Future News after examining the leaked database and found that much of it looked real. The researcher spoke on condition of anonymity because he found the information of his wife and several of her family members in the leaked data set. He also found other acquaintances and verified that their information was accurate.
The researcher downloaded two files from the BreachForums post and found that one had information on 1 million 23andMe users of Ashkenazi heritage. The other file included data on more than 300,000 users of Chinese heritage.
So in other words, this is the verified data investigated independently
I think it is better to have a small number of posts with real engagement than a large number of posts with no engagement on them at all