Tue, 02/07/2023 - 02:52 Engadget Arts & Entertainment Elon Musk may have to think of a lot more ways to make Twitter Blue appealing to potential subscribers if he wants the subscription service to be a major source of revenue. Tags Media, Arts & Entertainment, Social & Online Media, site|engadget, provider_name|Engadget, region|US, language|en-US, author_name|Mariella Moon Source Twitter reportedly had only 180,000 subscribers in the US last month