In a reversal, Twitter lets users like and retweet Substack links, but searches including "Substack" still return results for just "newsletter" instead (Igor Bonifacic/Engadget)

Igor Bonifacic / Engadget:
In a reversal, Twitter lets users like and retweet Substack links, but searches including “Substack” still return results for just “newsletter” instead  —  In a reversal of a limitation the platform put in place earlier in the week, Twitter is once again allowing users to interact with Substack links freely.