Did The Washington Post publish an article by Hunter Biden titled "New Studies Show Moderate Crack Cocaine Use Not A Cause For Concern"? No, that's not true: The headline of an article purporting to be on the Washington Post website is fake. A search of the newspaper's website yields "0 results" for the headline. The addition of Hunter Biden as a byline is a sarcastic reference to President Joe Biden's son, who has admitted to drug addiction, including crack cocaine.
The claim appeared in a tweet (archived here) on July 11, 2022. It opens:
This is what the post looked like on Twitter at the time of writing:
(Source: Twitter screenshot taken on Tue Jul 12 18:53:16 2022 UTC)
The post shows a screen grab that appears to be from an undated Washington Post article, which does not exist. Using Google to search the headline plus Washington Post yields no results, as does a search on the Washington Post website.
The caption of the photo "Cisgender African American holding crack - Source: Reuters)" is fake. The real photo is an Associated Press image published in an August 21, 2019, USA Today article with the caption, "A small bag containing crack cocaine. Damian Dovarganes, AP."
(Source: USATODAY screenshot taken on Tue Jul 12 19:08:11 2022 UTC)
The Hunter Biden byline on the article is a satirical reference to President Biden's only living son. Hunter Biden has confessed to his previous extensive crack use in his autobiography as well as multiple interviews.