[Domenic_S]

He did not claim that bots were a surprise -- in fact, getting rid of bots was the premise of his offer in the first place. His issue with the bots was that he thought there was evidence that there were far more bots than claimed and Twitter was dodging his requests for info. There are some plausible arguments that even outside due diligence that bot problem would be meaningful, like that it's a materially adverse change.

But that's all beside the point. These kind of antics happen all the time in the business world. The buyer threatens to back out, the seller takes them to court, they settle. LVMH & Tiffany comes to mind as a very recent example: it wasn't a due diligence argument there, either.