The $4M / day that Musk says Twitter is losing is comprised of $3.2M in cash to service the debt and $.8M other losses.
OP is making a point that Twitter is now saddled with ~13 billion in debt, with 1.2B in interest payments now required over the next 12 months[0].
> Musk and his co-investors collectively cut a check for more than $30 billion of their own money for the Twitter deal. That money would be at risk if Twitter required a debt restructuring down the line.
0: https://www.reuters.com/markets/deals/twitters-massive-reven...
He waived due diligence on this deal. https://www.cnbc.com/2022/06/06/musk-says-twitter-is-refusin...
No. The $13B debt he saddled Twitter with did not exist during the due diligence phase, which he also waived.
Word was prior to the takeover, their debt was on the order of $200M.
Based on this Reuters article[0], it was more around $5.3B, but they were only losing 200M/yr.
> It's not clear how much of the $5.29 billion debt Twitter had before the acquisition was refinanced or remained with the company. It's also not clear how much of the $2.7 billion in cash that Twitter held as of the end of June it got to keep once it went private.
0: https://www.reuters.com/markets/deals/twitters-massive-reven...
No. He knew about the company's finances because that's part of M&A due diligence.
https://morganandwestfield.com/knowledge/due-diligence-check...