Elon Musk is a technology company founder and business executive whose net worth, depending on the fortunes of the stock market, has often ranked him as the world’s wealthiest person. He first made a fortune as a member of “the Paypal Mafia”; today his companies include Tesla, SpaceX, Neuralink, OpenAI, and The Boring Company.

Twitter is a social media microblogging service with several hundred million users that is especially influential for journalists, academics, government officials and other elites. It has been perceived as both an important catalyst for pro-democratic uprisings and a cesspool of misinformation and hate speech, and has attracted significant attention from regulators.

On October 27, 2022, Elon Musk completed a $44 billion buyout of Twitter. Soon after this deal closed, credit rating agency Moody’s downgraded Twitter’s corporate credit rating two steps to B1 from Ba2, citing “governance risk” associated with Twitter’s new ownership. (See also Moody’s rating scale and definitions.)

As of November 2022, Musks brief tenure as Twitter’s new head had been marked by massive layoffs, not only from such supporting roles as diversity, equity, and inclusion, but including significant numbers of engineers. According to a New York Times article from Nov 11, 2022:

In Redbird, Twitter’s platform and infrastructure organization, Mr. Musk shed numerous managers. The unit also lost about 80 percent of its engineering staff, raising internal concerns about the company’s ability to keep its site up and running.

That article also reported, as a result of these layoffs, a ratio of 70 engineers to each product manager at Twitter. Separately, top compliance officers resigned, suggesting potential troubles with the FTC.

Will Twitter have a corporate credit rating in the "C"s or worse before July 2023?

This question will resolve as Yes if at any time between November 1, 2022 to July 1, 2023 at least two of the Big Three credit reporting agencies (S&P, Moody's, and Fitch) assess Twitter's credit rating for senior, unsecured corporate bonds as Caa1 grade or worse, indicating poor standing and very high credit risk. It will resolve as No if July 1, 2023 arrives without this having happened.

As explained in this comment Twitter's rating has been withdrawn by two agencies. If ratings are still withdrawn as of July 1, 2023, this resolves No, if ratings are reinstated and above C it resolves No, if they're reinstated and C or below it resolves Yes.