In the M&A world, due diligence from the buyer happens
before you make your final offer
This explains the process in considerably more detail-
Learn about due diligence in the mergers and acquisitions process, what you can expect during the process, and why it is important to execute properly.
www.bbgbroker.com
and then later in the explanation:
The entire point of DD is for the buyer to try and get all his questions answered before he makes an offer--- since those answers might be material to WHAT he's willing to offer--- or in some cases if he ends up willing to make an offer at all.
But tl;dr is- once you make an offer, and it's accepted, you missed your chance for DD.
To steal from MLs explanation- A merger agreement -- in US public-company M&A usage -- is
not an agreement to look into the company, evaluate its business and decide whether you want to buy it. it's an agreement
to buy it
Elon jumped right to that final step without doing any DD.
What people are calling "He waived DD" is really "He didn't bother to do any during the period you have to actually do it"-- which is BEFORE you have a purchase agreement.
The things twitter agreed to provide in that agreement are FAR FAR more specific and narrow, and ONLY include things reasonably needed to complete the deal...
not about "is this a company with whom one should be offering to make a deal"--- that ship sailed when he made the offer.